src/main/resources/static/plugins/element-ui/lib/theme-chalk/option.css

微信扫码关注公众号，代码整理好后第一时间通知你。

.el-select-dropdown__item{font-size:14px;padding:0 20px;position:relative;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:#606266;height:34px;line-height:34px;-webkit-box-sizing:border-box;box-sizing:border-box;cursor:pointer}.el-select-dropdown__item.is-disabled{color:#C0C4CC;cursor:not-allowed}.el-select-dropdown__item.is-disabled:hover{background-color:#FFF}.el-select-dropdown__item.hover,.el-select-dropdown__item:hover{background-color:#F5F7FA}.el-select-dropdown__item.selected{color:#409EFF;font-weight:700}