<el-tabs v-model="activeName" :stretch="true" @tab-click="handleClick">
<el-tab-pane label="相似病历" name="first">
<div class="scicon">
<i style="margin-right: 5px;" class="far fa-star" aria-hidden="true"></i>全部收藏
</div>
</el-tab-pane>
<el-tab-pane label="症状相似" name="second">
<div class="scicon">
<i style="margin-right: 5px;" class="far fa-star" aria-hidden="true"></i>全部收藏
</div>
</el-tab-pane>
<el-tab-pane label="检查体征相似" name="third">
<div class="scicon">
<i style="margin-right: 5px;" class="far fa-star" aria-hidden="true"></i>全部收藏
</div>
</el-tab-pane>
</el-tabs>

难道是因为stretch 宽度拉伸导致的?