The Power of Pure CSS - No JavaScript Needed

<details>
  <summary>Item 1</summary>
  <div>
    Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
  </div>
</details>
<details>
  <summary>Item 2</summary>
  <div>
    Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
  </div>
</details>
<details>
  <summary>Item 3</summary>
  <div>
    Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
  </div>
</details>

html, body {color: #fff; background-color: #131417; padding: 15px;}

$fluent-timing: cubic-bezier(.16,1,.29,.99);

@mixin bezier-trans($style: all) {
  $style: unquote($style);
  transition-property: $style;
  transition-duration: .4s;
  transition-timing-function: $fluent-timing;
}

@keyframes fontSizeIn {
	0% {
    font-size: 0;
    opacity: 0;
	}

100% {
    font-size: initial;
    opacity: 0; 
	}
}

@keyframes fadeIn {
  0% {
    opacity: 0;
  }

100% {
		opacity: 1;
	}
}

details {
  width: 750px;
  margin: auto;

+ details {
    margin-top: 15px;
  }

::-webkit-details-marker {
    display: none; // Hide marker for Blink and Webkit
  }

summary {
    list-style-type: none; // Hide marker for Gecko
    cursor: pointer;
    padding: 5px;

&::after {
      content: "\f107";
      font-family: "Font Awesome 5 Pro";
      display: block;
      float: right;

@include bezier-trans();
    }

+ div {
      margin-top: 10px;
      padding: 5px;
    }
  }

&[open] {
    summary::after {
      transform: rotate(180deg);
    }
 
    div {
      animation-name: fontSizeIn, fadeIn;
      animation-duration: 160ms, 160ms;
      animation-delay: 0ms, 160ms;
    }
  }
}

54

Pure CSS Animated Accordion

By: pixeldev

* {
  box-sizing: border-box;
}
body {
  display: grid;
  place-items: center;
  min-height: 100vh;
  background: #ffcb05;
}
.pokeball {
  display: block;
  width: 192px;
  height: 192px;
  background: radial-gradient(
      white 16px,
      black 17px 18px,
      white 19px 24px,
      black 25px 32px,
      transparent 33px
    ),
    linear-gradient(to bottom, red 0 80px, black 81px 96px, white 97px 100%);
  border-radius: 50%;
  border: 8px solid black;
  box-shadow: inset -16px -8px 0 0 rgba(0, 0, 0, 0.2);
  animation: fall 0.5s ease-in-out 1s,
    shake 1.25s cubic-bezier(0.36, 0.07, 0.19, 0.97) 1.5s 3,
    catch 0.5s ease-out 5.25s forwards;
}
/* Animation */
@keyframes shake {
  0% {
    transform: translateX(0) rotate(0);
  }
  20% {
    transform: translateX(-10px) rotate(-20deg);
  }
  30% {
    transform: translateX(10px) rotate(20deg);
  }
  50% {
    transform: translateX(-10px) rotate(-10deg);
  }
  60% {
    transform: translateX(10px) rotate(10deg);
  }
  100% {
    transform: translateX(0) rotate(0);
  }
}
@keyframes fall {
  0% {
    transform: translateY(-200%);
  }
  60% {
    transform: translateY(0);
  }
  80% {
    transform: translateY(-10%);
  }
  100% {
    transform: translateY(0);
  }
}
@keyframes catch {
  to {
    filter: saturate(0.8) brightness(0.8);
  }
}

53

Pokeball Caught Animation

By: pixeldev

52

Fixed Header Responsive Table

By: pixeldev

</div>
    <div class="title">
      <h3 class="main-title">Spring</h3>
      <h4 class="subtitle">A flower blossoms for its own joy.
      </h4>
    </div>
  </div>
  <div class="item">
    <div class="photo"><img alt="Photo 2" class="background-photo" src="https://images.unsplash.com/photo-1491929007750-dce8ba76e610?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=747&q=80"></div>
    <div class="overlay"></div>
    <div class="title">
      <h3 class="main-title">Summer</h3>
      <h4 class="subtitle">Every summer has a story.</h4>
    </div>
  </div>
  <div class="item">
    <div class="photo"><img alt="Photo 3" class="background-photo" src="https://images.unsplash.com/photo-1459478309853-2c33a60058e7?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=750&q=80"></div>
    <div class="overlay"></div>
    <div class="title">
      <h3 class="main-title">fall</h3>
      <h4 class="subtitle">Life starts all over when it gets crisp in the fall.</h4>
    </div>
  </div>
  <div class="item">
    <div class="photo"><img alt="Photo 4" class="background-photo" src="https://images.unsplash.com/photo-1457269449834-928af64c684d?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=667&q=80"></div>
    <div class="overlay"></div>
    <div class="title">
      <h3 class="main-title">winter</h3>
      <h4 class="subtitle">When snow falls, nature listens.</h4>
    </div>
  </div>
</div>

/* BY Mostafa Alvandi*/

/*
FONTS
*/

@import url("https://fonts.googleapis.com/css2?family=Baloo+Tammudu+2:wght@500;700&display=swap");

/*
RESET
*/

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/*
LAYOUT
*/

body {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  background: linear-gradient(
      to right,
      rgba(28, 103, 99, 0.4),
      rgba(12, 71, 70, 0.6)
    ),
    url("https://images.unsplash.com/photo-1457269449834-928af64c684d?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=667&q=80")
      no-repeat center center/cover;
  font-family: "Baloo Tammudu 2", cursive;
}

.container {
  display: flex;
  justify-content: center;
  position: relative;
  height: 60%;
  width: 95%;
  padding: 1rem;
}

.item {
  flex: 0 0 12%;
  position: relative;
  overflow: hidden;
  box-shadow: 1px 1px 2px rgba(0, 0, 0, 0.55), -1px -1px 2px rgba(0, 0, 0, 0.51);
  transition: 0.5s;
}

.photo {
  height: 100%;
  width: 100%;
}

img {
  height: 100%;
  width: 100%;
  object-fit: cover;
  filter: blur(1px);
  transition: 0.5s;
}

.overlay {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  z-index: 10;
  opacity: 0;
  transition: 1s;
}

.title {
  position: absolute;
  top: 0;
  height: 100%;
  width: 100%;
  z-index: 20;
  padding: 1rem;
}
.main-title {
  color: aliceblue;
  text-transform: uppercase;
  text-shadow: 1px 1px 5px rgba(45, 44, 44, 0.77),
    -1px 2px 1px rgba(50, 50, 50, 0.8);
  transform-origin: top left;
  transition: 0.5s;
}

.subtitle {
  position: absolute;
  bottom: 1rem;
  font-size: 2rem;
  font-weight: 500;
  line-height: 1;
  padding-right: 1rem;
  color: aliceblue;
  text-shadow: 1px 1px 5px black;
  opacity: 0;
  transform: scale(0) translateY(2rem);
  transition: transform 0.1s 0.2s, opacity 0.1s 0.4s;
}

/*
ANIMATIONS
*/

.item:hover {
  flex: 1;
}

.item:hover .overlay {
  background-image: linear-gradient(
    to top,
    rgb(2, 2, 2),
    rgba(47, 46, 46, 0) 30%
  );
  opacity: 1;
  transition: 0.8s;
}

.item:hover .main-title {
  transform: scale(2);
}

.item:hover .subtitle {
  transform: scale(1) translateY(0);
  opacity: 1;
}

.item:hover img {
  filter: blur(0);
}

52

Image accordion slider (pure CSS)

By: pixeldev

<div class="main">
  <h1>Responsive Card Grid Layout</h1>
  <ul class="cards">
    <li class="cards_item">
      <div class="card">
        <div class="card_image"><img src="https://picsum.photos/500/300/?image=10"></div>
        <div class="card_content">
          <h2 class="card_title">Card Grid Layout</h2>
          <p class="card_text">Demo of pixel perfect pure CSS simple responsive card grid layout</p>
          <button class="btn card_btn">Read More</button>
        </div>
      </div>
    </li>
    <li class="cards_item">
      <div class="card">
        <div class="card_image"><img src="https://picsum.photos/500/300/?image=5"></div>
        <div class="card_content">
          <h2 class="card_title">Card Grid Layout</h2>
          <p class="card_text">Demo of pixel perfect pure CSS simple responsive card grid layout</p>
          <button class="btn card_btn">Read More</button>
        </div>
      </div>
    </li>
    <li class="cards_item">
      <div class="card">
        <div class="card_image"><img src="https://picsum.photos/500/300/?image=11"></div>
        <div class="card_content">
          <h2 class="card_title">Card Grid Layout</h2>
          <p class="card_text">Demo of pixel perfect pure CSS simple responsive card grid layout</p>
          <button class="btn card_btn">Read More</button>
        </div>
      </div>
    </li>
    <li class="cards_item">
      <div class="card">
        <div class="card_image"><img src="https://picsum.photos/500/300/?image=14"></div>
        <div class="card_content">
          <h2 class="card_title">Card Grid Layout</h2>
          <p class="card_text">Demo of pixel perfect pure CSS simple responsive card grid layout</p>
          <button class="btn card_btn">Read More</button>
        </div>
      </div>
    </li>
    <li class="cards_item">
      <div class="card">
        <div class="card_image"><img src="https://picsum.photos/500/300/?image=17"></div>
        <div class="card_content">
          <h2 class="card_title">Card Grid Layout</h2>
          <p class="card_text">Demo of pixel perfect pure CSS simple responsive card grid layout</p>
          <button class="btn card_btn">Read More</button>
        </div>
      </div>
    </li>
    <li class="cards_item">
      <div class="card">
        <div class="card_image"><img src="https://picsum.photos/500/300/?image=2"></div>
        <div class="card_content">
          <h2 class="card_title">Card Grid Layout</h2>
          <p class="card_text">Demo of pixel perfect pure CSS simple responsive card grid layout</p>
          <button class="btn card_btn">Read More</button>
        </div>
      </div>
    </li>
  </ul>
</div>

/* Font */
@import url('https://fonts.googleapis.com/css?family=Quicksand:400,700');

/* Design */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  background-color: #ecf9ff;
}

body {
  color: #272727;
  font-family: 'Quicksand', serif;
  font-style: normal;
  font-weight: 400;
  letter-spacing: 0;
  padding: 1rem;
}

.main{
  max-width: 1200px;
  margin: 0 auto;
}

h1 {
    font-size: 24px;
    font-weight: 400;
    text-align: center;
}

img {
  height: auto;
  max-width: 100%;
  vertical-align: middle;
}

.btn {
  color: #ffffff;
  padding: 0.8rem;
  font-size: 14px;
  text-transform: uppercase;
  border-radius: 4px;
  font-weight: 400;
  display: block;
  width: 100%;
  cursor: pointer;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: transparent;
}

.btn:hover {
  background-color: rgba(255, 255, 255, 0.12);
}

.cards {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  margin: 0;
  padding: 0;
}

.cards_item {
  display: flex;
  padding: 1rem;
}

@media (min-width: 40rem) {
  .cards_item {
    width: 50%;
  }
}

@media (min-width: 56rem) {
  .cards_item {
    width: 33.3333%;
  }
}

.card {
  background-color: white;
  border-radius: 0.25rem;
  box-shadow: 0 20px 40px -14px rgba(0, 0, 0, 0.25);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.card_content {
  padding: 1rem;
  background: linear-gradient(to bottom left, #EF8D9C 40%, #FFC39E 100%);
}

.card_title {
  color: #ffffff;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: capitalize;
  margin: 0px;
}

.card_text {
  color: #ffffff;
  font-size: 0.875rem;
  line-height: 1.5;
  margin-bottom: 1.25rem;    
  font-weight: 400;
}
.made_by{
  font-weight: 400;
  font-size: 13px;
  margin-top: 35px;
  text-align: center;
}

52

Responsive Card Grid Layout using Pure CSS

By: pixeldev

body {
	background: #5fadd3;
}

.weather {
	background-color: #1c77ec;
	background-image: -webkit-gradient(linear, 0% 0%, 0% 100%, from(#1c77ec), to(#7deaff));
	background-image: -moz-linear-gradient(top, #1c77ec, #7deaff);
	background-image: -ms-linear-gradient(top, #1c77ec, #7deaff);
	border-radius: 20px;
	width: 100px;
	height: 100px;
	display: inline-block;
}

.weather:hover {
	animation: jiggle 0.2s infinite;
	-webkit-animation: jiggle 0.2s infinite;
    -moz-animation-duration: 0.2s;
    -moz-animation-name: jiggle;
    -moz-animation-iteration-count: infinite;
    -webkit-transform: rotate(-1deg);
    -moz-transform: rotate(-1deg);
}

.sun {
	background-color: #fada0b;
	border-radius: 100%;
	width: 40px;
	height: 40px;
	top: 20px;
	left: 15px;
	position: relative;
}

.cloud-main {
	opacity: 0.9;
	background: #fff;
	width: 65px;
	height: 25px;
	border-radius: 20px;
	position: relative;
	left: 25px;
	top: 10px;
}

.cloud-bubble-one {
	opacity: 1.0;
	background: #fff;
	width: 35px;
	height: 35px;
	position: relative;
	border-radius: 100%;
	left: 10px;
	top: -15px;
}

.cloud-bubble-two {
	opacity: 1.0;
	background: #fff;
	width: 30px;
	height: 25px;
	position: relative;
	border-top-right-radius: 20px;
	border-bottom-right-radius: 10px;
	left: 35px;
	top: -40px;
}

.notes {
	background: #fed32c;
	border-radius: 20px;
	width: 100px;
	height: 100px;
	display: inline-block;
}

.notes:hover {
	animation: jiggle 0.2s infinite;
	-webkit-animation: jiggle 0.2s infinite;
    -moz-animation-duration: 0.2s;
    -moz-animation-name: jiggle;
    -moz-animation-iteration-count: infinite;
    -webkit-transform: rotate(-1deg);
    -moz-transform: rotate(-1deg);
}

.note {
	background: #fff;
	height: 70px;
	width: 100px;
	border-bottom-right-radius: 20px;
	border-bottom-left-radius: 20px;
	position: relative;
	top: 30px;
	border-top: 3px solid #b9a046;
	box-sizing:border-box;
	-moz-box-sizing:border-box; /* Firefox */
}

.dotted-line {
	width: 100%;
	height: 3px;
	border-bottom: 3px dotted #acaead;
	position: relative;
}

.line {
	width: 100%;
	border-bottom: 2px solid #acaead;
	position: relative;
	height: 2px;
	padding-top: 15px;
}

.line-last {
	width: 90px;
	border-bottom: 2px solid #acaead;
	position: relative;
	height: 2px;
	padding-top: 15px;
	left: 5px;
	border-radius: 3px;
}

@keyframes jiggle {
    0% {
        transform: rotate(-1deg);
	}
	50% {
    	transform: rotate(1deg);
	}
}

@-webkit-keyframes jiggle {
    0% {
        -webkit-transform: rotate(-1deg);
	}
	50% {
    	-webkit-transform: rotate(1deg);
	}
}

@-moz-keyframes jiggle {
    0% {
        -moz-transform: rotate(-1deg);
	}
	50% {
		-moz-transform: rotate(1deg);
	}
}

51

Pure CSS iOS 7 Icons hover w/ Jiggle Effect

By: pixeldev

@import  url(https://fonts.googleapis.com/css?family=Montserrat);

*,
*::after,
*::before {
  box-sizing: border-box;
}

body {
  background: #39393A;
  font-size: 1.2rem;
  font-family: Montserrat;
  letter-spacing: 1px;
  color: white;
}

a {
  text-decoration: none;
  color: white;
}

em {
  font-style: normal;
}

section {
  width: 100%;
  height: 100vh;
  display: table;
}

section .center {
  display: table-cell;
  text-align: center;
  vertical-align: middle;
}

.button {
  position: relative;
  background: #E75A7C;
  display: inline-block;
  height: 60px;
  width: 200px;
  border-radius: 50em;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.7), inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

span,
em,
i {
  position: absolute;
  width: 100%;
  height: 100%;
  left: 0;
}

span {
  overflow: hidden;
}

.button em {
  top: 0;
  line-height: 60px;
}

.button i {
  top: 100%;
  line-height: 60px;
}

.button:hover em,
.button.hover em{
  top: -100%;
}

.button:hover i,
.button.hover i{
  top: 0%;
}

em,
i {
  transition: top 0.3s;
}

.button::before,
.button::after {
  position: absolute;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s;
}

.button::before {
  content: 'File Size: 5mb';
  width: 160px;
  height: 60px;
  background: #0E84A1;
  border-radius: 0.25em;
  bottom: 90px;
  line-height: 60px;
  left: calc(50% - 80px);
  font-size: 15px;
}

.button::after {
  content: '';
  width: 0px;
  height: 0px;
  border: 10px solid transparent;
  border-top-color: #0E84A1;
  bottom: 70px;
  left: calc(50% - 10px);
}

.button:hover::before,
.button:hover::after,
.button.hover::before,
.button.hover::after{
  opacity: 1;
  visibility: visible;
}

.button:hover::before,
.button.hover::before{
  bottom: 80px;
}

.button:hover::after,
.button.hover::after{
  bottom: 60px;
}

51

Animated Button with Tooltip (Pure CSS)

By: pixeldev

50

Border Trace

By: pixeldev

<div id="container">
<ul id="menu">
  <li><a href="#">About Me</a>
		<ul>
			<li><a href="#">Lorem ipsum dolor</a></li>
			<li><a href="#">Maecenas lacinia sem</a></li>
			<li><a href="#">Suspendisse fringilla</a></li>
		</ul>
	</li>
	<li><a href="#">Portfolio</a>
		<ul>
			<li><a href="#">Lorem ipsum dolor</a></li>
			<li><a href="#">Maecenas dignissim fermentum luctus</a></li>
			<li><a href="#">Suspendisse fringilla</a></li>
			<li><a href="#">Lorem ipsum dolor</a></li>
			<li><a href="#">Maecenas lacinia sem</a></li>
			<li><a href="#">Suspendisse fringilla</a></li>
		</ul>
	</li>
	<li><a href="#">Clients</a>
		<ul>
			<li><a href="#">Lorem ipsum dolor</a></li>
			<li><a href="#">Maecenas lacinia sem</a></li>
			<li><a href="#">Suspendisse fringilla</a></li>
		</ul>
	</li>
	<li><a href="#">Contact Me</a>
		<ul>
			<li><a href="#">Lorem ipsum dolor</a></li>
			<li><a href="#">Maecenas dignissim fermentum luctus</a></li>
			<li><a href="#">Suspendisse fringilla</a></li>
		</ul>
	</li>
	<li><a href="#">Support</a></li>
</ul>
</div>

* {
  	margin: 0; 
		padding: 0;
		box-sizing: border-box;
	}

body {
		padding: 30px; 
		font-family: "Helvetica Neue", helvetica, arial; 
		background: url('https://subtlepatterns.com/patterns/white_carbonfiber.png');
	}

#container {
		position: relative;
		width: 940px;		
	}

#container:after {
		content: "";
		display: block;
		clear: both;
		height: 0;
	}

#menu {
		position: relative;
		float: left;
		width: 100%;
		padding: 0 20px;
		border-radius: 3px;
		box-shadow: inset 0 1px 1px rgba(255,255,255,.5), inset 0 -1px 0 rgba(0,0,0,.15), 0 1px 3px rgba(0,0,0,.15);
		background: #ccc; 
	}

#menu, #menu ul {
		list-style: none;
	}

#menu > li {
		float: left;
		position: relative;
		border-right: 1px solid rgba(0,0,0,.1);
		box-shadow: 1px 0 0 rgba(255,255,255,.25);
		perspective: 1000px;
		
	}

#menu > li:first-child {
		border-left: 1px solid rgba(255,255,255,.25);
		box-shadow: -1px 0 0 rgba(0,0,0,.1), 1px 0 0 rgba(255,255,255,.25);
	}

#menu a {
		display: block;
		position: relative;
		z-index: 10;
		padding: 13px 20px 13px 20px;
		text-decoration: none;
		color: rgba(75,75,75,1);
		line-height: 1;
		font-weight: 600;
		font-size: 12px;
		letter-spacing: -.05em;
		background: transparent;		
		text-shadow: 0 1px 1px rgba(255,255,255,.9);
		transition: all .25s ease-in-out;
	
	}

#menu > li:hover > a {
		background: #333;
		color: rgba(0,223,252,1);
		text-shadow: none;
	}

#menu li ul  {
		position: absolute;
		left: 0;
		z-index: 1;
		width: 200px;
		padding: 0;
		opacity: 0;
		visibility: hidden;
		border-bottom-left-radius: 4px;
		border-bottom-right-radius: 4px;
		background: transparent;
		overflow: hidden;
		transform-origin: 50% 0%;
	}

#menu li:hover ul {
		
		padding: 15px 0;
		background: #333;
		opacity: 1;
		visibility: visible;
		box-shadow: 1px 1px 7px rgba(0,0,0,.5);
		animation-name: swingdown;
		animation-duration: 1s;
		animation-timing-function: ease;

}

@keyframes swingdown {
		0% {
			opacity: .99999;
			transform: rotateX(90deg);
		}

30% {			
			transform: rotateX(-20deg) rotateY(5deg);
			animation-timing-function: ease-in-out;
		}

65% {
			transform: rotateX(20deg) rotateY(-3deg);
			animation-timing-function: ease-in-out;
		}

100% {
			transform: rotateX(0);
			animation-timing-function: ease-in-out;
		}
	}

#menu li li a {
		padding-left: 15px;
		font-weight: 400;
		color: #ddd;
		text-shadow: none;
		border-top: dotted 1px transparent;
		border-bottom: dotted 1px transparent;
		transition: all .15s linear;
	}

#menu li li a:hover {
		color: rgba(0,223,252,1);
		border-top: dotted 1px rgba(255,255,255,.15);
		border-bottom: dotted 1px rgba(255,255,255,.15);
		background: rgba(0,223,252,.02);
	}
* {
  	margin: 0; 
		padding: 0;
		box-sizing: border-box;
	}

body {
		padding: 30px; 
		font-family: "Helvetica Neue", helvetica, arial; 
		background: url('https://subtlepatterns.com/patterns/white_carbonfiber.png');
	}

#container {
		position: relative;
		width: 940px;		
	}

#container:after {
		content: "";
		display: block;
		clear: both;
		height: 0;
	}

#menu {
		position: relative;
		float: left;
		width: 100%;
		padding: 0 20px;
		border-radius: 3px;
		box-shadow: inset 0 1px 1px rgba(255,255,255,.5), inset 0 -1px 0 rgba(0,0,0,.15), 0 1px 3px rgba(0,0,0,.15);
		background: #ccc; 
	}

#menu, #menu ul {
		list-style: none;
	}

#menu > li {
		float: left;
		position: relative;
		border-right: 1px solid rgba(0,0,0,.1);
		box-shadow: 1px 0 0 rgba(255,255,255,.25);
		perspective: 1000px;
		
	}

#menu > li:first-child {
		border-left: 1px solid rgba(255,255,255,.25);
		box-shadow: -1px 0 0 rgba(0,0,0,.1), 1px 0 0 rgba(255,255,255,.25);
	}

#menu a {
		display: block;
		position: relative;
		z-index: 10;
		padding: 13px 20px 13px 20px;
		text-decoration: none;
		color: rgba(75,75,75,1);
		line-height: 1;
		font-weight: 600;
		font-size: 12px;
		letter-spacing: -.05em;
		background: transparent;		
		text-shadow: 0 1px 1px rgba(255,255,255,.9);
		transition: all .25s ease-in-out;
	
	}

#menu > li:hover > a {
		background: #333;
		color: rgba(0,223,252,1);
		text-shadow: none;
	}

#menu li ul  {
		position: absolute;
		left: 0;
		z-index: 1;
		width: 200px;
		padding: 0;
		opacity: 0;
		visibility: hidden;
		border-bottom-left-radius: 4px;
		border-bottom-right-radius: 4px;
		background: transparent;
		overflow: hidden;
		transform-origin: 50% 0%;
	}

#menu li:hover ul {
		
		padding: 15px 0;
		background: #333;
		opacity: 1;
		visibility: visible;
		box-shadow: 1px 1px 7px rgba(0,0,0,.5);
		animation-name: swingdown;
		animation-duration: 1s;
		animation-timing-function: ease;

}

@keyframes swingdown {
		0% {
			opacity: .99999;
			transform: rotateX(90deg);
		}

30% {			
			transform: rotateX(-20deg) rotateY(5deg);
			animation-timing-function: ease-in-out;
		}

65% {
			transform: rotateX(20deg) rotateY(-3deg);
			animation-timing-function: ease-in-out;
		}

100% {
			transform: rotateX(0);
			animation-timing-function: ease-in-out;
		}
	}

#menu li li a {
		padding-left: 15px;
		font-weight: 400;
		color: #ddd;
		text-shadow: none;
		border-top: dotted 1px transparent;
		border-bottom: dotted 1px transparent;
		transition: all .15s linear;
	}

#menu li li a:hover {
		color: rgba(0,223,252,1);
		border-top: dotted 1px rgba(255,255,255,.15);
		border-bottom: dotted 1px rgba(255,255,255,.15);
		background: rgba(0,223,252,.02);
	}

49

Menu Swinging Animation

By: pixeldev

49

A Growing (Pure CSS) Hexagon

By: pixeldev

@import url(https://fonts.googleapis.com/css?family=Varela+Round);

html, body { background: #333 url("https://codepen.io/images/classy_fabric.png"); }

.slides {
    padding: 0;
    width: 609px;
    height: 420px;
    display: block;
    margin: 0 auto;
    position: relative;
}

.slides * {
    user-select: none;
    -ms-user-select: none;
    -moz-user-select: none;
    -khtml-user-select: none;
    -webkit-user-select: none;
    -webkit-touch-callout: none;
}

.slides input { display: none; }

.slide-container { display: block; }

.slide {
    top: 0;
    opacity: 0;
    width: 609px;
    height: 420px;
    display: block;
    position: absolute;

transform: scale(0);

transition: all .7s ease-in-out;
}

.slide img {
    width: 100%;
    height: 100%;
}

.nav label {
    width: 200px;
    height: 100%;
    display: none;
    position: absolute;

opacity: 0;
    z-index: 9;
    cursor: pointer;

transition: opacity .2s;

color: #FFF;
    font-size: 156pt;
    text-align: center;
    line-height: 380px;
    font-family: "Varela Round", sans-serif;
    background-color: rgba(255, 255, 255, .3);
    text-shadow: 0px 0px 15px rgb(119, 119, 119);
}

.slide:hover + .nav label { opacity: 0.5; }

.nav label:hover { opacity: 1; }

.nav .next { right: 0; }

input:checked + .slide-container  .slide {
    opacity: 1;

transform: scale(1);

transition: opacity 1s ease-in-out;
}

input:checked + .slide-container .nav label { display: block; }

.nav-dots {
	width: 100%;
	bottom: 9px;
	height: 11px;
	display: block;
	position: absolute;
	text-align: center;
}

.nav-dots .nav-dot {
	top: -5px;
	width: 11px;
	height: 11px;
	margin: 0 4px;
	position: relative;
	border-radius: 100%;
	display: inline-block;
	background-color: rgba(0, 0, 0, 0.6);
}

.nav-dots .nav-dot:hover {
	cursor: pointer;
	background-color: rgba(0, 0, 0, 0.8);
}

input#img-1:checked ~ .nav-dots label#img-dot-1,
input#img-2:checked ~ .nav-dots label#img-dot-2,
input#img-3:checked ~ .nav-dots label#img-dot-3,
input#img-4:checked ~ .nav-dots label#img-dot-4,
input#img-5:checked ~ .nav-dots label#img-dot-5,
input#img-6:checked ~ .nav-dots label#img-dot-6 {
	background: rgba(0, 0, 0, 0.8);
}

49

Image Slider

By: pixeldev

:root {
  --menu: 70px; /* Defines the header height to be reused across the layout for consistency */
  
  --black: #08170a;
  --black-green: #0f2913;
  --green-black: #1e5225;
  --green-black-medium: #26915d;
  --green: #06ba78;
  --green-white-medium: #6ccf93;
  --green-white: #b8ffc0;
}

/* === Essential logic for anchor navigation === */
html {
    /* Prevents the fixed menu from covering the section content when jumping to an ID */
    scroll-padding-top: var(--menu); 
    /* Enables smooth transition when clicking navigation links instead of an instant jump */
    scroll-behavior: smooth; 
}
/* ======================================== */

* {
  margin: 0;
  padding: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
  /* Offsets the body content so the first section isn't hidden under the fixed navbar */
  padding-top: var(--menu); 
}

nav {
  width: 100%;
  background: var(--black);
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 50px;
  height: var(--menu); /* Uses the variable to match the global layout height */
  position: fixed;
  top: 0;
}

nav a {
  color: var(--green-white);
  text-decoration: none;
  font-size: 20px;
  height: 100%;
  display: block;
  display: flex;
  justify-content: center;
  align-items: center;
  font-weight: bolder;
}

div {
  width: 100%;
  /* Ensures each section fills the remaining viewport height (100vh) minus the menu height */
  height: calc(100vh - var(--menu)); 
  display: flex;
  justify-content: center;
  align-items: center;
  font-weight: bolder;
  font-size: 15px;
  color: var(--green-white);
}

/* Logic to cycle through 5 different background colors based on the element's index */
div:nth-child(5n+1) { background: var(--green-black); }
div:nth-child(5n+4) { background: var(--green-white-medium); }
div:nth-child(5n+2) { background: var(--green-black-medium); }
div:nth-child(5n+5) { background: var(--green); }
div:nth-child(5n+3) { background: var(--black-green); }

48

All

Pure CSS Animated Accordion

By: pixeldev

Pokeball Caught Animation

By: pixeldev

Fixed Header Responsive Table

By: pixeldev

Image accordion slider (pure CSS)

By: pixeldev

Responsive Card Grid Layout using Pure CSS

By: pixeldev

Pure CSS iOS 7 Icons hover w/ Jiggle Effect

By: pixeldev

Animated Button with Tooltip (Pure CSS)

By: pixeldev

Border Trace

By: pixeldev

Menu Swinging Animation

By: pixeldev

A Growing (Pure CSS) Hexagon

By: pixeldev

Image Slider

By: pixeldev

Scroll Navigation

By: pixeldev