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A simple example of JS implementation of mask layer effect_javascript skills

WBOY
WBOYOriginal
2016-05-16 17:15:471091browse

复制代码 代码如下:

function show(){

    var cover = document.getElementById("cover");

    cover.style.width = document.documentElement.scrollWidth "px";

    cover.style.height = document.documentElement.scrollHeight "px";

    cover.style.display = "block";

}

#cover{

    background:gray;

    position:absolute;

    left:0px;

    top:0px;

    display:none;

    z-index:20;

    filter:alpha(opacity=60);

    opacity:0.6 !important;

    }

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