vant/lib/action-bar-icon/index.css

:root,:host{--van-action-bar-icon-width: 48px;--van-action-bar-icon-height: 100%;--van-action-bar-icon-color: var(--van-text-color);--van-action-bar-icon-size: 18px;--van-action-bar-icon-font-size: var(--van-font-size-xs);--van-action-bar-icon-active-color: var(--van-active-color);--van-action-bar-icon-text-color: var(--van-text-color);--van-action-bar-icon-background: var(--van-background-2)}.van-action-bar-icon{display:flex;flex-direction:column;justify-content:center;min-width:var(--van-action-bar-icon-width);height:var(--van-action-bar-icon-height);color:var(--van-action-bar-icon-text-color);font-size:var(--van-action-bar-icon-font-size);line-height:1;text-align:center;background:var(--van-action-bar-icon-background);cursor:pointer}.van-action-bar-icon:active{background-color:var(--van-action-bar-icon-active-color)}.van-action-bar-icon__icon{margin:0 auto var(--van-padding-base);color:var(--van-action-bar-icon-color);font-size:var(--van-action-bar-icon-size)}