.tabbed-panel
  enable-flex(justify:flex-start, alignContent:stretch, alignItems:stretch)
  width 636px
  border-radius 5px
  .workspace-tabs
    width 30%
    width dialog-tab-width
    padding 20px 0
    margin 0px
    background-color: white
    ul
      margin 0
      margin-right -1px
      list-style none
      padding-left 10px
      max-height 300px
      overflow-x hidden
      overflow-y auto
      li
        blenderbox-modal-labels()
        font-size 15px
        -webkit-border-radius tab-border-radius
        -moz-border-radius tab-border-radius
        border-radius: tab-border-radius
        margin 10px 16px 10px 6px
        padding 10px
        color #000
        background-color #c8e7de
        cursor pointer
        &.tab-selected
          color #fff
          background-color #72bca6
        &.tab-link-defined
          -webkit-border-top-right-radius 0
          -webkit-border-bottom-right-radius 0
          -moz-border-radius-topright 0
          -moz-border-radius-bottomright 0
          border-top-right-radius 0
          border-bottom-right-radius 0
          margin-right 0
        &.tab-divider
          background-color #72bca6
          padding 1px
          cursor default

  .workspace-tab-component
    margin 0px
    width 70%
    border-left 5px solid #72bca6
    padding 10px
    padding-bottom 20px

.tabbed-panel
  enable-flex(justify:flex-start, alignContent:stretch, alignItems:stretch)
  width 636px
  border-radius 5px
  .workspace-tabs
    width 30%
    width dialog-tab-width
    padding 20px 0
    margin 0px
    background-color: white
    ul
      margin 0
      margin-right -1px
      list-style none
      padding-left 10px
      overflow-x hidden
      overflow-y auto
      li
        blenderbox-modal-labels()
        font-size 15px
        -webkit-border-radius tab-border-radius
        -moz-border-radius tab-border-radius
        border-radius: tab-border-radius
        margin 10px 16px 10px 6px
        padding 10px
        color #000
        background-color #c8e7de
        cursor pointer
        &.tab-selected
          color #fff
          background-color #72bca6
        &.tab-link-defined
          -webkit-border-top-right-radius 0
          -webkit-border-bottom-right-radius 0
          -moz-border-radius-topright 0
          -moz-border-radius-bottomright 0
          border-top-right-radius 0
          border-bottom-right-radius 0
          margin-right 0
        &.tab-divider
          background-color #72bca6
          padding 1px
          cursor default

  .workspace-tab-component
    margin 0px
    width 70%
    border-left 5px solid #72bca6
    padding 10px
    padding-bottom 20px

Make left tab panel as tall as model panel
Make left tab panel as tall as model panel