body {
  font-family: 'proxima-nova', 'Helvetica Neue', Helvetica, sans-serif;
  background: #23282e;
  background-image: -webkit-linear-gradient(bottom, #23282E 0%, #3D4B5C 100%);
  background-image: -o-linear-gradient(bottom, #23282E 0%, #3D4B5C 100%);
  background-image: linear-gradient(to top, #23282E 0%, #3D4B5C 100%);
  text-align: center;
  display: table;
  height: 100%;
  width: 100%;
}

.wrapper {
  display: table-cell;
  vertical-align: middle;
}

ul {
  display: inline-block;
  margin-top: -100px;
}

li {
  display: inline-block;
  color: white;
  text-align: center;
  width: 190px;
  margin-bottom: 30px;
}

a {
  color: white;
  color: rgba(255, 255, 255, .7);
  text-decoration: none;
  text-align: center;
  transition: .2s;
  font-size: 20px;
  font-weight: 300;
}

.icon {
  display: block;
  width: 113px;
  height: 113px;
  margin: 0 auto 15px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, .1);
  border-radius: 19px;
  transition: .2s;
}

a:hover {
  color: rgba(255, 255, 255, 1);
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.8);
}

a:hover .icon {
  box-shadow: 0 10px 30px rgba(0, 0, 0, .3);
}

.icon img {
  display: block;
  width: 113px;
  height: 113px;
}

a span {
  padding: 0 15px;
  display: block;
}

.logo {
  position: absolute;
  left: 40px;
  top: 40px;
  width: 142px;
  height: 40px;
}

@media (max-width: 768px) {
  body {
    display: block;
    height: auto;
  }

  .wrapper {
    display: block;
  }

  a {
    font-size: 14px;
  }

  ul {
    margin-top: 150px;
  }

  li {
    float: left;
    display: block;
    width: 50%;
    margin-bottom: 40px;
  }

  .icon,
  .icon img {
    width: 75px;
    height: 75px;
  }
}