edx-platform/lms/static/sass/course/layout/_courseware_header.scss

.wrapper-course-material {
  @include clearfix();

  box-sizing: border-box;

  @extend %ui-print-excluded;

  border-bottom: none;
  margin: 0 auto;
  padding: 0;
  width: 100%;

  .course-material {
    @extend %inner-wrapper;

    @include media-breakpoint-down(md) {
      overflow-x: scroll;
      overflow-y: hidden;
      white-space: nowrap;
    }
  }

  .course-tabs {
    @include border-top-radius(4px);
    @include clearfix();

    padding: ($baseline*0.75) 0 ($baseline*0.75) 0;

    .tab {
      display: inline-block;
      list-style: none;

      &.prominent {
        @include margin-right(16px);

        background: rgba(255, 255, 255, 0.5);
        border-radius: 3px;
      }

      &.prominent + li {
        @include padding-left($baseline*0.75);
        @include border-left(1px solid $gray-d3);
      }

      a,
      a:visited {
        @include padding(($baseline/2), ($baseline*0.75), 13px, ($baseline*0.75));

        @extend %t-title7;
        @extend %t-regular;

        color: theme-color("dark");
        display: block;
        text-align: center;
        text-decoration: none;
        border-bottom: 4px hidden theme-color("primary");

        &:hover,
        &:focus,
        &.active {
          color: theme-color("primary");
          border-bottom-style: solid;
          background-color: transparent;
        }
      }
    }
  }
}

.course-content {
  margin-top: ($baseline*1.5);

  .courseware {
    min-height: 300px;
  }
}

.header-global.slim {
  box-shadow: 0 1px 2px $shadow-l1;
  height: auto;
  padding: ($baseline/4) 0 ($baseline/2) 0;
  border-bottom: 1px solid $header-border-color;
  background: $header-bg;
  line-height: 1.4;

  .wrapper-header {
    padding-top: ($baseline/4);
  }

  .nav-account-management {
    padding: 0;
  }

  .guest .secondary {
    @include margin-right(0);
  }

  .guest .secondary a {
    display: none;

    &#login {
      @include background-image(linear-gradient(-90deg, lighten($link-color, 8%), lighten($link-color, 5%) 50%, $link-color 50%, darken($link-color, 10%) 100%));

      border: 1px solid transparent;
      border-color: theme-color("primary");
      border-radius: 3px;
      box-sizing: border-box;
      box-shadow: 0 1px 0 0 rgba(255, 255, 255, 0.6);
      color: theme-color("inverse");
      display: inline-block;
      font-family: $font-family-sans-serif;
      font-size: $font-size-sm;
      font-weight: bold;
      letter-spacing: 0;
      line-height: 1em;
      margin: 4px;
      padding: 6px 12px 8px;
      text-decoration: none;
      text-transform: none;
      text-shadow: 0 -1px rgba(0, 0, 0, 0.6);
      vertical-align: middle;

      &:hover,
      &:active,
      &:focus {
        @include background-image(linear-gradient(-90deg, $primary, $primary 50%, $primary 50%, $primary 100%));
      }
    }
  }

  nav {
    padding-top: ($baseline/4);
  }

  .logo {
    margin: 0 ($baseline/2) 0 0;

    img {
      height: 30px;
      vertical-align: middle;
    }
  }

  .nav-main,
  .nav-global {
    display: none;
  }

  .course-header {
    @include float(left);
    @include margin(10px, 10px, 0, 10px);

    display: inline-block;
    width: 65%;
    font-weight: font-weight(normal);
    font-size: font-size(base);
    line-height: 1.5;

    .provider {
      font: inherit;
      font-weight: bold;
    }
  }

  a#signup {
    position: relative;
    margin-top: 3px;
    padding: 6px 12px 8px;
    text-transform: none;
    font-size: 14px;
    font-weight: bold;
    letter-spacing: 0;
  }

  @media print {
    background: transparent !important;
  }
}