@select-dropdown-prefix-cls: ~"@{css-prefix}select-dropdown"; .@{select-dropdown-prefix-cls} { width: 100%; max-height: 200px; overflow: auto; margin: 5px 0; padding: 7px 0; background-color: #fff; box-sizing: border-box; border: 1px solid @border-color-base; border-radius: @btn-border-radius; box-shadow: 0 1px 3px rgba(0,0,0,.2); position: absolute; z-index: @zindex-select; }