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蒙板模态对话框_html/css_WEB-ITnose

 1   2   3   4       5        6       7         #maskBackground { position: absolute; left: 0px; top: 0px; opacity: 0.2; background-color: red; display: none; z-index: 99; } 8         /*蒙板*/ 9         #maskTip { position: absolute; border: 1px solid blue; background-color: white; z-index: 100; display: none; }10      11      12 13         function ShowMask() {14             //让背景蒙板显示,而且在填满整个浏览器15             var masBg = document.getElementById('maskBackground');16             masBg.style.display = 'block';17             masBg.style.width = window.innerWidth + 'px';18             masBg.style.height = window.innerHeight + 'px';19             //让前景蒙板显示,而且在浏览器的中间20             var maskTip = document.getElementById('maskTip');21 22             //要更改的地方 宽度高度23             maskTip.style.width = '100px';24             maskTip.style.height = '100px';25 26             maskTip.style.left = (window.innerWidth - parseInt(maskTip.style.width)) / 2 + 'px';27             maskTip.style.top = (window.innerHeight - parseInt(maskTip.style.height)) / 2 + 'px';28             maskTip.style.display = 'block';29             30         }31 32         function HideMask() {33             document.getElementById('maskBackground').style.display = 'none';34             document.getElementById('maskTip').style.display = 'none';35         }36 37      38  39  40      41     

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