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CSS Call to Action Box

by Jennifer Perrin

HTML

<div class="callBox">
  <div class="box callBox-outer">
    <div class="box callBox-inner">hover</div>
    <div class="box-rotate">
      <div class="quart callBox-red"></div>
      <div class="quart callBox-green"></div>
      <div class="quart callBox-blue"></div>
      <div class="quart callBox-yellow"></div>
    </div>
  </div>
</div>

CSS

html, body {
  background-color: #212121;
}
html *, body * {
  box-sizing: border-box;
}

.callBox {
  position: relative;
  background: #212121;
  width: 300px;
  height: 300px;
  padding: 50px 0;
}

.callBox .box { overflow: hidden; }

.callBox-outer {
  padding: 5px;
  position: relative;
  width: 200px;
  height: 200px;
  margin: 0  auto;
}

.callBox-inner {
  width: 195px;
  height: 195px;
  background: #212121;
  top: 50%;
  left: 50%;
  -webkit-transform: translateX(-50%) translateY(-50%) scale(0.95);
      -ms-transform: translateX(-50%) translateY(-50%) scale(0.95);
          transform: translateX(-50%) translateY(-50%) scale(0.95);
  position: absolute;
  z-index: 1;
  text-align: center;
  line-height: 195px;
  -webkit-transition: all 0.6s cubic-bezier(0.19, 1, 0.22, 1);
          transition: all 0.6s cubic-bezier(0.19, 1, 0.22, 1);
  color: #25C1BB;
  -webkit-backface-visibility: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.box-rotate {
  position: absolute;
  width: 400px;
  height: 400px;
  top: -100px;
  left: -100px;
  -webkit-transition: all 0.8s cubic-bezier(0.19, 1, 0.22, 1);
          transition: all 0.8s cubic-bezier(0.19, 1, 0.22, 1);
}
.box-rotate .quart {
  width: 200px;
  height: 200px;
  position: absolute;
}
.box-rotate .callBox-red {
  top: 0;
  left: 0;
  background: #ff1200;
}
.box-rotate .callBox-green {
  top: 0;
  left: 200px;
  background: #00c01b;
}
.box-rotate .callBox-blue {
  top: 200px;
  left: 200px;
  background: #3c3cff;
}
.box-rotate .callBox-yellow {
  top: 200px;
  left: 0;
  background: #f5ec00;
}

.callBox-outer:hover {
  cursor: pointer;
}
.callBox-outer:hover .callBox-inner {
  width: 195px;
  height: 195px;
  -webkit-transform: translateX(-50%) translateY(-50%) scale(1);
      -ms-transform: translateX(-50%) translateY(-50%) scale(1);
          transform: translateX(-50%) translateY(-50%) scale(1);
  background: #313131;
}
.callBox-outer:hover .box-rotate {
 ...