为什么我的CSS掩码无法在Firefox中运行?

时间:2013-03-06 10:21:05

标签: css firefox mask

我想在图像上制作一个遮罩。

它在Chrome中正常运行,所以我必须做正确的事。

这是代码:

<style type="text/css">
  .element {
    width: 250px;
    height: 250px;
    overflow: hidden;
    color: #fff;
    background: url(images/film.png);
    mask:url(images/cat.svg);
    -webkit-mask-image: url(images/cat.svg);
  }
</style>
</head>

<body>
  <div class="element">
  </div><img src="images/cat.svg" width="250" height="250" />
</body>

可在此查看:kindervakantiepas.nl/mask/mask.html

为什么它在Firefox中不起作用?

1 个答案:

答案 0 :(得分:10)

问题是svg本身。你没有定义一个面具。我在另一个项目中有一个类似的问题,并想出了这样的svg。你会找到一个有用的例子here

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd" [
    <!ENTITY ns_svg "http://www.w3.org/2000/svg">
    <!ENTITY ns_xlink "http://www.w3.org/1999/xlink">
]>
<svg xmlns="&ns_svg;" xmlns:xlink="&ns_xlink;" width="313.204" height="377.418" viewBox="0 0 313.204 377.418" >
<defs>
    <mask id="maskid" maskUnits="objectBoundingBox">
    <polygon stroke="#FFFFFF" fill="#FFFFFF" stroke-miterlimit="10" points="56.609,171.248 116.609,207.586 189.849,165.896 182.243,136.037 
    174.638,108.994 208.159,98.854 209.849,74.628 189.567,59.698 200.553,38.008 181.116,58.572 163.651,56.037 154.074,32.938 
    156.328,54.064 148.722,59.98 148.44,83.642 118.018,92.375 78.863,111.248 69.286,144.769 50.13,86.177 "/>
    </mask>
</defs>
<g>
<polygon stroke="#FFFFFF" stroke-miterlimit="10" points="56.609,171.248 116.609,207.586 189.849,165.896 182.243,136.037 
    174.638,108.994 208.159,98.854 209.849,74.628 189.567,59.698 200.553,38.008 181.116,58.572 163.651,56.037 154.074,32.938 
    156.328,54.064 148.722,59.98 148.44,83.642 118.018,92.375 78.863,111.248 69.286,144.769 50.13,86.177 "/>
</g>
</svg>

对于FF,您可以通过id引用(在本例中为:maskid)使用掩码:

在CSS中:

.element {
    background: url("images/film.png") repeat scroll 0 0 transparent;
    color: #FFFFFF;
    height: 250px;
    overflow: hidden;
    width: 250px;
    mask: url("images/cat.svg#maskid");
    -webkit-mask-image: url(images/cat.svg);
}