.demo-block {
  display: block;
  width: 100%;
  margin-top: 25px;
  margin-bottom: 25px;
}

ul.demo-cards li.demo-card {
  list-style-type: none;
  display: table-cell;
  text-align: center;
}

ul.demo-cards li.demo-card div {
  display: block;
}

ul.demo-cards {
  display: table;
  width: 100%;
  margin: 0;
  padding: 0;
  margin-top: 25px;
}

.demo-card-content {
  width: 350px;
  background-color: #F1F1F1;
  box-shadow: 2px 2px 10px rgba(0,0,0,0.2);
  -moz-box-shadow: 2px 2px 10px rgba(0,0,0,0.2);
  -webkit-box-shadow: 2px 2px 10px rgba(0,0,0,0.2);
}

.demo-card-content img {
  width: 100px;
  height: 100px;
  margin-top: 10px;
}

.demo-card-content pre {
  margin-top: 15px;
}