1像素边框
.border-1px{ position: relative; } .border-1px:after { display: block; position: absolute; left: 0; bottom: 0; border-top: 1px solid #ccc; width: 100%; content: ''; }
.border-1px{ position: relative; } .border-1px:after { display: block; position: absolute; left: 0; bottom: 0; border-top: 1px solid #ccc; width: 100%; content: ''; }