.example {
  $height:5*$font-size;
  border: $border-width solid $border-color;
  background-color: #ffffff;
  margin-bottom: $component-span;
  position: relative;
  border-radius: $border-radius;
  &:hover{
    box-shadow: $shadow-base;
  }
  .demo{
    padding: $spacer2;
    min-height: $height + $font-size;
    position: relative;
  }
  .code-box{
    border-top: $border-width solid $split-color;
    min-height: 5*$font-size;
  }
}