使用CSS移动虚线边框

.element {
  border-style: dashed;
}

.element {
  border-style: dashed;
  border-color: #000000; /* 设置边框颜色 */
  border-width: 2px; /* 设置边框宽度 */
  border-spacing: 5px; /* 设置边框间隔 */
}

@keyframes moveBorder {
  0% {
    border-spacing: 0px;
  }
  50% {
    border-spacing: 10px;
  }
  100% {
    border-spacing: 0px;
  }
}

.element {
  border-style: dashed;
  border-color: #000000;
  border-width: 2px;
  animation: moveBorder 2s infinite; /* 设置动画效果 */
}