解决css边框1px

效果：解决边框1px的问题

把对应的class名写到需要添加边框的元素上。按需添加。

/*边框1px*/.border-1px{position: relative;}.border-1px:after{display: block;width:100%;position: absolute;top: 0;left: 0;right:0;bottom:0;border-top:1px solid #000;content:" ";}/*边框向下1px*/.border-bottom-1px{position: relative;}.border-bottom-1px:after{display: block;width:100%;position: absolute;left: 0;bottom:0;border-top:1px solid #000;content:" ";}/*边框向上1px*/.border-top-1px{position: relative;}.border-top-1px:after{display: block;width:100%;position: absolute;left: 0;top:0;border-top:1px solid #000;content:" ";}