css自定义虚线边框

今天在掘金上看见了一楼主自定义的虚线边框，感觉很不错，学习了

---

hdj

div {

      padding: 1em;

      border: 1px dashed transparent;

      background: linear-gradient(white,white) padding-box,

      repeating-linear-gradient(-45deg,#ccc 0, #ccc 0.25em,white 0,white 0.75em);

}

---

语法：

linear-gradient = 

= [left | right] || [top | bottom]

=[|]?