<el-select popper-class="my-custom-dropdown"clearable v-model="searchModel.alarmLevel"style="width: 300px;"placeholder="请选择"><el-option v-for="(item, index) in alarmLevels":key="index":label="item.label":value="item.value"></el-option></el-select>
<style>/* 全局样式文件，或者 <style> 不带 scoped */.my-custom-dropdown{background-color:#07224c;border-radius:8px;padding:10px;}.my-custom-dropdown.el-popper.is-light{border:1px solid #236ace;--el-popper-bg-color-light:#07224c;}.my-custom-dropdow.el-popper.is-light>.el-popper__arrow:before{border:1px solid red;}/* .el-popper.is-light>.el-popper__arrow:before */.my-custom-dropdown.el-select-dropdown__item{color:#fff;font-size:14px;}.my-custom-dropdown.el-select-dropdown__item:hover{background-color:#236ace;color:#fff;}.my-custom-dropdown.el-select-dropdown__item.is-selected{background-color:#1158bc85!important;}.my-custom-dropdown.el-select-dropdown__item.is-hovering{background-color:#1158bc85!important;}.my-custom-dropdown.el-tree-select__popper{background:rgba(23,101,210,0.01);box-shadow:inset-2px 2px 5px 0pxrgba(75,150,255,0.3),inset 3px-2px 5px 0pxrgba(75,150,255,0.25);border-radius:2px 2px 2px 2px;border:1px solid #236ace;.el-tree-node__content{color:#fff;background:rgba(23,101,210,0.01)!important;&:hover{background-color:#1158bc85;}}.el-select-dropdown__item,.el-select-dropdown__item.is-selected,.el-select-dropdown__item.is-hovering{background:rgba(23,101,210,0.01)!important;}}.my-custom-dropdown.el-select__selection{.el-select__selected-item.el-tag{background-color:#1158bc85;color:#fff;}}</style>
