CSS3有個別特性,可以觸發硬體GPU來加速渲染,而不是調用預設瀏覽器引擎渲染;
但是很多屬性,預設都是不開啟硬體加速的;需要觸發條件,一個最簡單的觸發條件就是使用3D屬性(對Z軸的操作)
代碼
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title>CSS3投影片</title> <style type="text/css" media="screen"> .items { width: 280px; height: 150px; border: 1px solid #ddd; box-sizing: border-box; border-radius:10px; background-size: cover; -webkit-transform: translateZ(0); transform: translateZ(0); background-repeat: no-repeat; -webkit-animation: slider 15s linear infinite alternate; animation: slider 15s linear infinite alternate; -webkit-transform-origin: center center; transform-origin: center center; } @-webkit-keyframes slider { 0% { background-image: url(1.jpg) ; } 25% { background-image: url(2.jpg) ; } 50% { background-image: url(3.jpg) ; } 75% { background-image: url(4.jpg); } 100% { background-image: url(5.jpg); } } @keyframes slider { 0% { background-image: url(1.jpg) ; } 25% { background-image: url(2.jpg) ; } 50% { background-image: url(3.jpg) ; } 75% { background-image: url(4.jpg); } 100% { background-image: url(5.jpg); } } </style></head><body> <p class="slider"> <p class="items"></p> </p></body></html>
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