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How to make glass/blur effect with HTML and CSS?

藏色散人Original: 2021-08-30 15:12:271859browse

In the previous article "HTML/css to achieve a fun text liquid filling effect" I introduced how to use HTML/css to achieve a fun text liquid filling effect. Interested friends can learn Find out~

This article will introduce to you how to use HTML and CSS to create a glass/blur effect overlay.

What is the specific effect?

Let’s go directly to the complete code:

<!DOCTYPE HTML>
<html>
<head>
    <meta charset="UTF-8">
    <title></title>
    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css">
    <style>
        body {
            margin: 0;
            padding: 0;
        }

        section {
            position: relative;
            background: url(004.jpg);
            background-attachment: fixed;
            height: 100vh;
        }

        section .layout {
            position: relative;
            top: 35%;
            left: 30%;
            max-width: 600px;
            padding: 50px;
            box-shadow: 0 10px 20px rgba(0, 0, 0, .5);
            color: rgb(255, 254, 254);
        }

        section .layout::before {
            content: &#39;&#39;;
            position: absolute;
            top: 0;
            bottom: 0;
            left: 0;
            right: 0;
            background: url(004.jpg);
            background-attachment: fixed;
            filter: blur(8px);
        }

        section .layout h2 {
            position: relative;
        }

        section .layout p {
            position: relative;
        }

        section .layout button {
            position: relative;
        }
    </style>

</head>

<body>
<section>
    <div class="layout">
        <h2>PHP中文网</h2>
        <p>
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        </p>

        <button class="btn btn-outline-danger">
            按钮
        </button>
    </div>
</section>
</body>

</html>

The effect is as follows:

How to make glass/blur effect with HTML and CSS?

Here we mainly need to master the filter attribute and :before selection Filter:

filter attribute:

The filter attribute defines the visual effect (for example: blur and saturation) of the element (usually How to make glass/blur effect with HTML and CSS? ).

Note: The non-standard "filter" attribute supported by older versions of Internet Explorer (4.0 to 8.0) has been deprecated. IE8 and lower browsers usually use the opacity attribute.

:before selector:

:before selector inserts content before the content of the selected element. Use the content attribute to specify the content to be inserted.

Note: For :before in IE8 and earlier versions, must be declared.

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