How to create a wavy background using CSS?-CSS Tutorial-php.cn

How to create a wavy background using CSS?

藏色散人

Release： 2021-08-20 14:27:51

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In this article "Use CSS to quickly create an advanced blurry background image", I introduce to you how to use CSS to quickly create an advanced blurry background image. Interested friends can go and learn about it. ~

In this article, we will introduce to you a method to quickly realize the wave background using CSS, ensuring that your page has a personalized background. Of course, if there is any background style you want to achieve, you can tell me in the comments. !

Note: This article will use the before selector to easily generate a wavy background, and will use a waveform image in .png file format, which can be created by yourself or downloaded from here.

Let’s start with the code directly:

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8" />
    <meta name="viewport" content=
 "width=device-width, initial-scale=1.0" />

    <title>
        如何使用CSS创建波浪背景 ?
 </title>

    <style>
        body {
            padding: 0%;
            margin: 0%;
        }

        .demo {
            padding: 200px;
            text-align: center;
        }

        section {
            width: 100%;
            min-height: 300px;
        }

        .pattern {
            position: relative;
            background-color: #3bb78f;
            background-image: linear-gradient(315deg,
            #3bb78f 0%, #0bab64 74%);
        }

        .pattern:before {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 250px;
            background: url(
            https://img.php.cn/upload/article/000/000/020/611f4b147b431604.png);
            background-size: cover;
            background-repeat: no-repeat;
        }
    </style>
</head>

<body>
<section class="pattern">
    <div class="demo">
        <h1>PHP中文网</h1>
    </div>
</section>
</body>

</html>

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The effect is as follows:

How to create a wavy background using CSS?

In the above In the code, first, we will add a basic background to this part, and then use the before selector to set the wave png file on top of our background to achieve the wave background effect!

Note:

<section></section> The tag defines the section (section, section) in the document. Such as chapters, headers, footers, or other parts of the document. (The

tag is new in HTML 5.), and all browsers support the

tag.

:before The selector inserts content before the content of the selected element. (Use the content attribute to specify the content to be inserted.), and for :before in IE8 and earlier, must be declared.

PHP Chinese website platform has a lot of video teaching resources. Welcome everyone to learn "css Video Tutorial"!

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