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.box-container {
position: relative;
width: 90%;
color: #777;
}
.border-top {
background: #b4bcbf;
padding: 15px;
}
.border-top:before {
content: '';
position: absolute;
left: 42%;
top: 0;
bottom: auto;
right: auto;
height: 7px;
width: 50%;
background-color: #8796a9;
}
.border-left {
background: #dfdad6;
padding: 15px;
}
.border-left:before {
content: '';
position: absolute;
left: 0;
top: 6%;
bottom: auto;
right: auto;
height: 52%;
width: 5px;
background-color: #a89d9e;
}
.border-right {
background: #eee9c4;
padding: 15px;
}
.border-right:after {
content: '';
position: absolute;
left: auto;
top: auto;
bottom: 5px;
right: 0;
height: 52%;
width: 5px;
background-color: #f39c81;
}
.border-bottom {
background: #bcdc9d;
padding: 15px;
}
.border-bottom:after {
content: '';
position: absolute;
left: 18px;
top: auto;
bottom: 0;
right: auto;
height: 6px;
width: 105px;
background-color: #32b66b;
}上述就是小编为大家分享的怎么在CSS中控制边框长度了，如果刚好有类似的疑惑，不妨参照上述分析进行理解。如果想知道更多相关知识，欢迎关注创新互联行业资讯频道。