244.模糊的边框

效果 (源码网盘地址在最后)

源码

index.html

  
  
  
  Document
  


  
关注公众号《大迁世界》

css

body {
  display: grid;
  place-content: center;
  margin: 0;
  min-height: 100vh;
}
div {
  display: grid;
  place-content: center;
  position: relative;
  border: solid 1.5em rgba(0, 0, 0, 0.03);
  padd