.dropdown-submenu { position:relative; & > .dropdown-menu { top: 0; left: 100%; margin-top: -6px; margin-left: -1px; border-radius:@border-radius-base; &.pull-right { right: 100%; left: auto; } } & > a:after { display: block; content: " "; float: right; width: 0; height: 0; border-color: transparent; border-style: solid; border-width: 3px 0 3px 3px; border-left-color: @icon-normal-ie; border-left-color: @icon-normal; margin-top: 5px; margin-right: -10px; } &.over:not(.disabled) > .dropdown-menu { display: block; } &.over > a:after { border-left-color: @dropdown-link-color; } }