css border只占元素的一部分

.table{
	display:flex;
	border: 1px solid #DCDEE2;
        border-top: none;
	position: relative;
	width: 1485px;
        padding-top: 24px;
}
.table::before{
	content: "";
	position: absolute;
	right: 0;
	top: -1px;
	width: 232px;
	height: 1px;
	background: #DCDEE2;
}