html, body {
  padding: 0;
  margin: 0;
  background: #ddd;

}

.container {
  max-width: 1040px;
  margin: 0 auto;
}

#demo.grid {
  margin: 0 -5px;
  .column {
    width: 33.33%;
    padding: 5px;
    float: left;
    box-sizing: border-box;
  }
  &:after {
    clear: both;
    content: '';
    display: block;
    height: 0;
    line-height: 0;
    padding: 0;
    margin: 0;
    font-size: 0;
  }
}

.card {
  height: 60px;
  overflow: hidden;
  line-height: 20px;
}