Question

CSS中是否有alt-filter的替代方案？要使此示例正常工作，我必须启用chrome://flags/#enable-experimental-web-platform-features

＆＃13;

body {
  background: url('http://verdewall.com/wp-content/uploads/2016/08/Background-Images-4H9.jpg') no-repeat center;
}

.glass {
  width: 100%;
  height: 500px;
  background: rgba(0,0,0,0.8);
  
  -webkit-backdrop-filter: contrast(4) blur(30px);
  backdrop-filter: contrast(4) blur(30px);
}

＆＃13;

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
  <title>Blur</title>
</head>
<body>
  <div class="glass">
  </div>
</body>
</html>

＆＃13;

以下是启用实验性功能的情况：

问题是它下面的内容是动态的。因此，并非所有这些都是图像和我发现只能使用图像的替代方案。就像这里显示模糊的半透明一样：

Answer 1

解决方法是使用剪辑路径，过滤器和相同内容两次，然后您将获得与backdrop-filter相同的结果

.container {
  width: 200px;
  height: 200px;
  position: relative;
  padding:1px;
}
.container .glass, .container .filter {
  background: url('https://lorempixel.com/400/200/') center/cover;
  text-align:center;
  color:#fff;
  height:100%;
}

.filter {
  position: absolute;
  top: 0;
  bottom: 0;
  right: 0;
  left: 0;
  filter: contrast(4) blur(3px);
  z-index: 2;
  clip-path: polygon(5% 15%, 82% 30%, 83% 71%, 17% 73%);
}

<div class="container">
  <div class="glass">
    <h1>A title</h1>
    <p>Some content Some content</p>
  </div>
  <div class="filter">
    <h1>A title</h1>
    <p>Some content Some content</p>
  </div>
</div>

你可以创建一个jQuery脚本，当它出现很多内容时会为你复制内容。您还可以考虑使用更复杂的脚本来调整所有需要的值和参数。

$('.backdrop').each(function() {
  var e = $(this).html();
  $(this).append('<div class="filter">'+e+'</div>');
})

.container {
  width: 200px;
  height: 200px;
  position: relative;
  padding:1px;
  display:inline-block;
}
.container .glass, .container .filter {
  background: url('https://lorempixel.com/400/200/') center/cover;
  text-align:center;
  color:#fff;
  height:100%;
}

.filter {
  position: absolute;
  top: 0;
  bottom: 0;
  right: 0;
  left: 0;
  filter: contrast(4) blur(3px);
  z-index: 2;
  clip-path: polygon(5% 15%, 82% 30%, 83% 71%, 17% 73%);
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="container backdrop">
  <div class="glass">
    <h1>A title</h1>
    <p>Some content Some content</p>
  </div>
</div>
<div class="container">
  <div class="glass">
    <h1>A title</h1>
    <p>Some content Some content</p>
  </div>
</div>

Answer 2

简单地说：过滤器

filter: blur(10px);

但是你必须稍微改变你的结构。这是一个例子：

＆＃13;

*{
  margin: 0;
  padding: 0;
  font-family: sans-serif;
}
main{
  height: 100vh;
  background: url('https://images.unsplash.com/photo-1477346611705-65d1883cee1e?dpr=0.800000011920929&auto=format&fit=crop&w=1199&h=800&q=80&cs=tinysrgb&crop=') fixed no-repeat;
  background-size: cover;
}
#container{
  width: 350px;
  height: 500px;
  background: inherit;
  position: absolute;
  overflow: hidden;
  top: 50%;
  left: 50%;
  margin-left: -175px;
  margin-top: -250px;
  border-radius: 8px;
}
#container:before{
  width: 400px;
  height: 550px;
  content: "";
  position: absolute;
  top: -25px;
  left: -25px;
  bottom: 0;
  right: 0;
  background: inherit;
  box-shadow: inset 0 0 0 200px rgba(255,255,255,0.2);
  filter: blur(10px);
}
form img{
  width: 120px;
  height: 120px;
  border-radius: 100%;
}
form{
  text-align: center;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%,-50%);
}
input{
  background: 0;
  width: 200px;
  outline: 0;
  border: 0;
  border-bottom: 2px solid rgba(255,255,255, 0.3);
  margin: 20px 0;
  padding-bottom: 10px;
  font-size: 18px;
  font-weight: bold;
  color: rgba(255,255,255, 0.8);
}
input[type="submit"]{
  border: 0;
  border-radius: 8px;
  padding-bottom: 0;
  height: 60px;
  background: #df2359;
  color: white;
  cursor: pointer;
  transition: all 600ms ease-in-out;
}
input[type="submit"]:hover{
  background: #C0392B;
}
span a{
  color: rgba(255,255,255, 0.8);
}

＆＃13;

<main>
<div id="container">
  <form action="">
    <input type="text" value=""><br>
    <input type="password"><br>
    <input type="submit" value="SIGN IN"><br>
    <span><a href="#">Forgot Password?</a></span>
  </form>
</div>
</main>

＆＃13;

Answer 3

试试这个：

.glass:before {
  content: "";
  position: fixed;
  left: 0;
  right: 0;
  z-index: 1;
  background: rgba(0,0,0,0.8);

  display: block;
  width:100%;
  height: 100%;

  -webkit-filter: blur(30px);
  -moz-filter: blur(30px);
  -o-filter: blur(30px);
  -ms-filter: blur(30px);
  filter: blur(30px);
}

磨砂玻璃外观

3 个答案: