table新建，table边框及表间距cellspacing="0"

dmr

html:
<table id="tableConfk" style="margin-bottom: 50px;margin-top: 30px;" cellspacing="0">
......
</table>

style:
#tableConfk{border-top: 1px solid #dfe6ec;border-left: 1px solid #dfe6ec;text-align: center;}
#tableConfk th{background-color: #f2f2f2;font-weight: normal;padding: 10px;}
#tableConfk td{border-right: 1px solid #dfe6ec;border-bottom: 1px solid #dfe6ec;padding: 10px;}

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