css3里面有一个@keyframes动画功能。
w3c上面的例子：
可以使用它来做一个幻灯片效果。
<!DOCTYPE html><html lang="en"><head> ???<meta charset="UTF-8"> ???<title>纯CSS做幻灯片</title></head><style> ???@keyframes slide { ???????0% { ???????????background: url(‘https://ss2.bdstatic.com/70cFvnSh_Q1YnxGkpoWK1HF6hhy/it/u=4229874093,2188481433&fm=26&gp=0.jpg‘) 0px 0px ???????} ???????25% { ???????????background: url(‘https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1548875514394&di=62dd50a1da7183efb48c88980269b64c&imgtype=jpg&src=http%3A%2F%2Fimg3.imgtn.bdimg.com%2Fit%2Fu%3D3037014303%2C3112421008%26fm%3D214%26gp%3D0.jpg‘) 0px 0px; ???????} ???????50% { ???????????background: url(‘https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1548875548425&di=1bc4e9b80d56d1f10c0e4d326dfa505a&imgtype=jpg&src=http%3A%2F%2Fimg1.imgtn.bdimg.com%2Fit%2Fu%3D1161267701%2C3620139336%26fm%3D214%26gp%3D0.jpg‘) 0px 0px; ???????} ???????100% { ???????????background: url(‘https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1548875490599&di=8c072d8773a04366464cac34db72f50e&imgtype=0&src=http%3A%2F%2Fp1.so.qhmsg.com%2Ft015663aba355e338c6.png‘) 0px 0px; ???????} ???} ???div { ???????width: 400px; ???????height: 400px; ???????animation: slide 14s infinite; ???}</style><body> ???<div> ???</div></body></html>
纯css做幻灯片效果
原文地址：https://www.cnblogs.com/huzhuhua/p/10340320.html