本文内容：页面镂空遮罩层、页面镂空遮罩引导层、图片镂空遮罩
常规遮罩层
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no"> <title>Title</title> <style> .mask{ position: absolute; width: 100%; height: 100%; top: 0; left: 0; background: rgba(0,0,0,0.4); display: flex; justify-content: center; align-items: center; z-index: 3; } .mask{ position:fixed; top : 0; left : 0; bottom : 0; right : 0; background:rgba(0,0,0,.5); /*background:hsla(0,100%,80%,0.5)*/ /*background:#000; opacity:0.5; */ } //模糊效果 毛玻璃效果 .blur{ -webkit-filter: blur(5px); /* Chrome, Opera */ -moz-filter: blur(5px); -ms-filter: blur(5px); filter: blur(5px); }</style></head><style></style><body><div class=mask></div></body></html>镂空遮罩层效果如图
使用box-shadow实现镂空遮罩引导层效果
优点：
圆角轻松实现； box-shadow 不会影响元素位置，定位只需要根据 content 的位置写。缺点：阴影可视区域无法触发click事件，因此，当点击蒙层任意区域，无法隐藏。
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no"> <title>Title</title> <style> .guide{ position: absolute; z-index: 2; top: 0px; left: 50%; transform: translateX(-50%); width: 50px; height: 50px; border-radius: 50px; border: 3px solid #2353FA; box-shadow: 0px 0px 0px 1000px rgba(0,0,0,.75); box-sizing: border-box; } </style></head><style></style><body><div class=guide></div></body></html>使用border实现镂空遮罩引导层效果
缺点：代码量大
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no"> <title>Title</title> <style> .guide{ position: absolute; z-index: 2; .opacityEle{ border: 700px solid rgba(0,0,0,0.75); width: 50px; height: 50px; position: relative; top: -700px; left: -538px; border-radius: 50%; .ele{ width: 50px; height: 50px; border: 3px solid #0B6EFF; border-radius: 25px; box-sizing: border-box; } } } </style></head><style></style><body><div class=guide> <div class=opacityEle> <div class=ele></div> </div></div></body></html>到此这篇关于css实现缕空遮罩层的示例代码的文章就介绍到这了,更多相关css缕空遮罩层内容请搜索脚本之家以前的文章或继续浏览下面的相关文章，希望大家以后多多支持脚本之家！
