我可以使用canvas元素作为CSS背景吗?
这在WebKit中已经成。
<html> <head> <style> div { background: -webkit-canvas(squares); width:600px; height:600px; border:2px solid black } </style> <script type="application/x-javascript"> function draw(w, h) { var ctx = document.getCSSCanvasContext("2d", "squares", w, h); ctx.fillStyle = "rgb(200,0,0)"; ctx.fillRect (10, 10, 55, 50); ctx.fillStyle = "rgba(0, 0, 200, 0.5)"; ctx.fillRect (30, 30, 55, 50); } </script> </head> <body onload="draw(300, 300)"> <div></div> </body> </html>
当前,Firefox 4包含一项功能,该功能允许您以这种方式将任何元素(包括画布)用作CSS背景:
<p id="myBackground1" style="background: darkorange; color: white; width: 300px; height: 40px;"> This element will be used as a background. </p> <p style="background: -moz-element(#myBackground1); padding: 20px 10px; font-weight: bold;"> This box uses #myBackground1 as its background! </p>