使用文本和伪元素旋转div？

<div id="rotate-div"></div>

#rotate-div {
  width: 200px;
  height: 200px;
  background-color: #ccc;
  transform: rotate(45deg); /* 旋转45度 */
  transition: transform 0.5s ease-in-out; /* 添加过渡效果 */
}

<div id="rotate-div">Hello, World!</div>

#rotate-div {
  position: relative;
}

#rotate-div::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(45deg); /* 旋转45度 */
  width: 20px;
  height: 20px;
  border: 10px solid transparent;
  border-top-color: #ccc;
}

#rotate-div::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(-45deg); /* 旋转-45度 */
  width: 20px;
  height: 20px;
  border: 10px solid transparent;
  border-top-color: #ccc;
}