Circle buttons - hoverable with grow and shadow

by Jordan Dayton

HTML

<div id="wrapper">
<p>POPULAR TOPICS</p>

  <div id="floating-box">
    <div>
      <a href="ENTER_URL_TO_FILTERED_CONTENT" target="_top">
        <div id="circle" class="circle circle2">
          <img class="images" src="https://maxcdn.icons8.com/iOS7/PNG/50/Programming/web_design_filled-50.png" title="Web Design Filled" width="34" />
        </div>
      </a>
    </div>
    <div>
      <h2>Course Design</h2>
    </div>
  </div>

  <div id="floating-box">
    <div>
      <a href="ENTER_URL_TO_FILTERED_CONTENT" target="_top">
        <div id="circle" class="circle circle3">
          <img class="images" src="https://maxcdn.icons8.com/iOS7/PNG/50/Science/classroom_filled-50.png" title="Classroom Filled" width="32" />
        </div>
      </a>
    </div>
    <div>
      <h3>Engaging Faculty</h3>
    </div>
  </div>

  <div id="floating-box">
    <div>
      <a href="ENTER_URL_TO_FILTERED_CONTENT" target="_top">
        <div id="circle" class="circle circle3">
          <img class="images" src="https://maxcdn.icons8.com/Android/PNG/48/Healthcare/groups-48.png" title="User Groups" width="34" />
        </div>
      </a>
    </div>
    <div>
      <h3>Engaging Students</h3>
    </div>
  </div>

  <div id="floating-box">
    <div>
      <a href="ENTER_URL_TO_FILTERED_CONTENT" target="_top">
        <div id="circle" class="circle circle4">
          <img class="images" src="https://maxcdn.icons8.com/windows8/PNG/48/Science/report_card-48.png" title="Report Card" width="34" />
        </div>
      </a>
    </div>
    <div>
      <h4>Outcomes & Rubrics</h4>
    </div>
  </div>

  <div id="floating-box">
    <div>
      <a href="ENTER_URL_TO_FILTERED_CONTENT" target="_top">
        <div id="circle" class="circle circle4">
          <img class="images" src="https://maxcdn.icons8.com/windows8/PNG/48/Very_Basic/checked-48.png" title="Checked" width="36" />
        </div>
      </a>
    </div>
    <div>
      <h4>Assessment & Grading</h4>
    </div>
  </div>

  <div...

CSS

body {
  color: #5e5e5e;
  font: 13px "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif;
}

h1 {
  display: block;
  font-size: 1em;
  margin-top: 0.76em;
  margin-bottom: 0.67em;
  margin-left: 0;
  margin-right: 0;
  text-align: center;
  font-weight: bold;
  color: #246792;
}

h2 {
  display: block;
  font-size: 1em;
  margin-top: 0.76em;
  margin-bottom: 0.67em;
  margin-left: 0;
  margin-right: 0;
  text-align: center;
  font-weight: bold;
  color: #E55D2E;
}

h3 {
  display: block;
  font-size: 1em;
  margin-top: 0.76em;
  margin-bottom: 0.67em;
  margin-left: 0;
  margin-right: 0;
  text-align: center;
  font-weight: bold;
  color: #E5942E;
}

h4 {
  display: block;
  font-size: 1em;
  margin-top: 0.76em;
  margin-bottom: 0.67em;
  margin-left: 0;
  margin-right: 0;
  text-align: center;
  font-weight: bold;
  color: #209F62;
}

p {
  display: block;
  font-size: 1em;
  text-align: left;
  font-weight: normal;
  color: #58585B;
  line-height: 25px;
}

#wrapper {
  text-align: center;
  margin-top: 0;
}

#floating-box {
  display: inline-block;
  width: 90px;
  height: 120px;
  padding: 15px;
  vertical-align: top;
}

#circle {
  width: 70px;
  height: 70px;
  -moz-border-radius: 50px;
  -webkit-border-radius: 50px;
  border-radius: 50px;
  margin: 0 auto;
  position: relative;
}

.circle {
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
  position: relative;
  border-radius: 50%;
  -webkit-transform: translateY(0);
  -webkit-transition: all .4s cubic-bezier(0.165, 0.84, 0.44, 1);
  transition: all .4s cubic-bezier(0.165, 0.84, 0.44, 1)
}

.circle:after {
  content: "";
  border-radius: 50%;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
  opacity: 0;
  -webkit-transition: all .4s cubic-bezier(0.165, 0.84, 0.44, 1);
  transition: all .4s cubic-bezier(0.165, 0.84, 0.44, 1)
}

.circle:hover:after {
  opacity: .8
}

.circle:hover {
  -webkit-transform: scale(1.10, 1.10);
 ...