Law*_*nce 5 javascript css css3
你如何测试background-clip的值:text,webkit支持文本,但是mozilla和其他浏览器我没有尝试过modernizr teststyles但没有运气
var testEl = document.createElement( "x-test" );
var supportsWebkitBackgroundClipText = typeof testEl.style.webkitBackgroundClip !== "undefined" && ( testEl.style.webkitBackgroundClip = "text", testEl.style.webkitBackgroundClip === "text" );
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