gistfile1.scss

.section-header {
  position: relative;
  margin-bottom: $padding-base-vertical;
  @extend %clearfix;

  &:before {
    content: '';
    z-index: 10;
    position: absolute;
    left: 0;
    top: 50%;
    height: 1px;
    width: 100%;
    background: darken($gray-light, 10%);
  }

  .section-title {
    z-index: 20;
    position: relative;
    display: block;
    float: left;
    padding-right: $padding-base-horizontal;
    background: $base-background-color;
  }
}

.section-header__actions {
  z-index: 20;
  position: relative;
  float: right;
  padding-left: $padding-base-horizontal;
  background: $base-background-color; 
}