css 在固定宽度的容器上扩展背景图像

Posted 2021-05-13

.bg-full {
  position: relative;
}

.bg-full:before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX( -50%);
  height: 100%;
  width: 100vw;
  background: red;
}

html {
  overflow-x: hidden;
}