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Adding Classes

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CSS

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CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

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CSS Base

About CSS Base

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About Vendor Prefixing

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JavaScript

About JavaScript Preprocessors

JavaScript preprocessors can help make authoring JavaScript easier and more convenient.

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Babel includes JSX processing.

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Packages

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HTML 

              
                <!--
  Credit where it's due:

  Single div loader by @alanshortis
  https://codepen.io/alanshortis/pen/eJLVXr

  Material shadows
  https://medium.com/@Florian/freebie-google-material-design-shadow-helper-2a0501295a2d#.igkgtj6vx
-->

<div class="container">
  <div class="card">
    <div class="icon-container">
      <div class="loading-icon perpetuum-mobile"></div>
    </div>
    <div class="description">
      <div class="name">Perpetuum Mobile</div>
      <code>cubic-bezier(0.55, 0.15, 0.45, 0.85)</code>
    </div>
  </div>
  <div class="card">
    <div class="icon-container">
      <div class="loading-icon impetus"></div>
    </div>
    <div class="description">
      <div class="name">Impetus</div>
      <code>cubic-bezier(0.5, -0.35, 0.5, 1.35)</code>
    </div>
  </div>
  <div class="card">
    <div class="icon-container">
      <div class="loading-icon full-circle"></div>
    </div>
    <div class="description">
      <div class="name">Full Circle</div>
      <code>cubic-bezier(0.6, 0, 0.4, 1)</code>
    </div>
  </div>
  <div class="card">
    <div class="icon-container">
      <div class="loading-icon gravity"></div>
    </div>
    <div class="description">
      <div class="name">Gravity</div>
      <code>cubic-bezier(0.5, 0.8, 0.5, 0.2)</code>
    </div>
  </div>
  <div class="card">
    <div class="icon-container">
      <div class="loading-icon overshot"></div>
    </div>
    <div class="description">
      <div class="name">Overshot</div>
      <code>cubic-bezier(0.65, 1.5, 0.6, 0.95)</code>
    </div>
  </div>
  <div class="card">
    <div class="icon-container">
      <div class="loading-icon downhill"></div>
    </div>
    <div class="description">
      <div class="name">Downhill Is Always Easier</div>
      <code>cubic-bezier(0.3, 0.1, 0.3, 0.85)</code>
    </div>
  </div>
  <div class="card">
    <div class="icon-container">
      <div class="loading-icon pendulum"></div>
    </div>
    <div class="description">
      <div class="name">Pendulum</div>
      <code>cubic-bezier(0.3, 1.65, 0.7, -0.65)</code>
    </div>
  </div>
  <div class="card">
    <div class="icon-container">
      <div class="loading-icon wtf"></div>
    </div>
    <div class="description">
      <div class="name">WTF <span>don't actually use this one :P</span></div>
      <code>cubic-bezier(1, -2.3, 1, 2.5)</code>
    </div>
  </div>
</div>
!

CSS 

              
                @import url(https://fonts.googleapis.com/css?family=Roboto:400,700,400italic);

@-webkit-keyframes spin {
  
  0% {
    -webkit-transform: rotate(0deg);
    transform: rotate(0deg);
  }

  100% {
    -webkit-transform: rotate(360deg);
    transform: rotate(360deg);
  }
  
}

@keyframes spin {
  
  0% {
    -webkit-transform: rotate(0deg);
    transform: rotate(0deg);
  }

  100% {
    -webkit-transform: rotate(360deg);
    transform: rotate(360deg);
  }
  
}

body {
  margin: 0;
  background: #eee;
  
  font-family: "Roboto", sans-serif;
  color: #333;
}

.container {
  width: 700px;
  margin: 0 auto;
  
  padding: 0 32px;
  box-sizing: border-box;
}

.card {
  margin: 32px 0;
  box-shadow: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23);
  background: white;
  
  width: 100%;
  min-height: 80px;
  
  display: flex;
}

.card .icon-container {
  width: 80px;
  
  display: flex;
  justify-content: space-around;
  align-items: center;
}

.card .description {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  
  flex-direction: column;
  flex-grow: 1;
  flex-basis: 0;
  
  padding: 8px 8px 8px 0;
}

.card .description .name {
  font-weight: bold;
  font-size: 1.3em;
}

.card .description .name span {
  font-size: .6em;
  font-weight: normal;
  font-style: italic;
  
  color: #bbb;
}

.loading-icon {
  border-radius: 50%;
  width: 18px;
  height: 18px;
  border: 0.25rem solid #ddd;
  border-top-color: #333;
  display: inline-block;
  margin: 0 8px;
  
  -webkit-animation-name: spin;
  -webkit-animation-duration: 1s;
  -webkit-animation-iteration-count: infinite;
  
  animation-name: spin;
  animation-duration: 1s;
  animation-iteration-count: infinite;
}

.perpetuum-mobile {
  -webkit-animation-timing-function: cubic-bezier(0.55, 0.15, 0.45, 0.85);
  animation-timing-function: cubic-bezier(0.55, 0.15, 0.45, 0.85);
}

.impetus {
  -webkit-animation-timing-function: cubic-bezier(0.5, -0.35, 0.5, 1.35);
  animation-timing-function: cubic-bezier(0.5, -0.35, 0.5, 1.35);
}

.full-circle {
  -webkit-animation-timing-function: cubic-bezier(0.6, 0, 0.4, 1);
  animation-timing-function: cubic-bezier(0.6, 0, 0.4, 1);
}

.gravity {
  -webkit-animation-timing-function: cubic-bezier(0.5, 0.8, 0.5, 0.2);
  animation-timing-function: cubic-bezier(0.5, 0.8, 0.5, 0.2);
}

.overshot {
  -webkit-animation-timing-function: cubic-bezier(0.65, 1.5, 0.6, 0.95);
  animation-timing-function: cubic-bezier(0.65, 1.5, 0.6, 0.95);
}

.downhill {
  -webkit-animation-timing-function: cubic-bezier(0.3, 0.1, 0.3, 0.85);
  animation-timing-function: cubic-bezier(0.3, 0.1, 0.3, 0.85);
}

.pendulum {
  -webkit-animation-timing-function: cubic-bezier(0.3, 1.65, 0.7, -0.65);
  animation-timing-function: cubic-bezier(0.3, 1.65, 0.7, -0.65);
}

.wtf {
  -webkit-animation-timing-function: cubic-bezier(1, -2.3, 1, 2.5);
  animation-timing-function: cubic-bezier(1, -2.3, 1, 2.5);
}

@media screen and (max-width: 700px) {
  
  .container {
    width: 100%;
  }
  
}
!

JS 

              
                // ¯\_| ಠ ∧ ಠ |_/¯
!
999px

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