wekan/client/components/settings/settingHeader.styl

#header #header-main-bar .setting-header-btn
  &.active,
  &:hover:not(.is-disabled)
    background: rgba(0, 0, 0, .15)
  color: darken(white, 5%)
  margin-left: 20px;
  padding-right: 10px;
  height: 28px;
  font-size: 13px;
  float: left;
  overflow: hidden;
  line-height: @height;
  margin: 0 2px;

  i.fa
    float: left
    display: block
    line-height: 28px
    color: darken(white, 5%)
    margin: 0 10px

  + span
    display: inline-block
    margin-top: 1px
    margin-right: 10px