kibana-123/src/ui/public/chrome/directives/global_nav/global_nav.less

Kibana is an open source (Apache Licensed), browser based analytics and search dashboard for Elasticsearch. Kibana is a snap to setup and start using. Kibana strives to be easy to get started with, while also being flexible and powerful, just like Elastic

@import (reference) "~ui/styles/mixins";
@import (reference) "~ui/styles/variables";

@global-nav-logo-height: 70px;

.global-nav {
  width: @global-nav-closed-width;
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  z-index: 0;
  background-color: @app-links-wrapper-background;
  overflow: hidden;

  &.is-global-nav-open {
    width: @global-nav-open-width;

    .app-title {
      display: inline-block;
    }

    + .app-wrapper {
      left: @global-nav-open-width;
    }
  }

  .logo-small,
  .logo {
    height: @global-nav-logo-height;
    width: @global-nav-open-width;
    list-style-type: none;
    &.kibana {
      background-image: url("~ui/images/logo.png");
      background-position: 24px 10px;
      background-size: 121px 38px;
      background-repeat: no-repeat;
      background-color: #fff;
    }
  }
}

  /**
   * 1. Push main apps to the top and bottom buttons to the bottom.
   * 2. Fill height of global nav, but respect the height of the logo.
   * 3. Allow user to scroll to see clipped nav items when the nav is too short.
   * 4. Style the scrollbar to look good in Chrome and Safari.
   */
  .global-nav__links {
    display: flex; /* 1 */
    flex-direction: column; /* 1 */
    justify-content: space-between; /* 1 */
    height: ~"calc(100% - @{global-nav-logo-height})"; /* 2 */
    overflow-x: hidden; /* 3 */
    overflow-y: auto; /* 3 */

    &::-webkit-scrollbar { /* 4 */
      width: 16px;
      height: 16px;
    }

    &::-webkit-scrollbar-thumb { /* 4 */
      background-color: #1e83ec;
      border: 6px solid transparent;
      background-clip: content-box;
    }

    &::-webkit-scrollbar-track { /* 4 */
      background-color: transparent;
    }
  }

    /**
     * 1. Prevent the top and bottom links from collapsing when the browser window is too short.
     *    This problem is specific to Safari.
     */
    .global-nav__links-section {
      flex: 0 0 auto; /* 1 */
    }