1.div增加外框
<div style="border: 1px solid #000;">
<el-col :span="item.span" style="padding: 20px">
<div style="border: 1px solid #000;">
<div class="box-header">
<h3 class="box-title">{{item.timeChart}}</h3>
<el-button style="float: right" size="mini" type="danger" icon="el-icon-delete" @click="deleteElcol(item)" circle></el-button>
</div>
<div class="box-body">
<component :is="item.timeChart" ref="occurrenceRate" v-if="reloadComponent" :formInline="formInline"/>
</div>
</div>
</el-col>
2.按钮居右
<el-button style="float: right" size="mini" type="danger" icon="el-icon-delete" @click="deleteElcol(item)" circle></el-button>