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html disable scrolling

王林

Release： 2023-05-27 09:46:08

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HTML disabling scrolling is a common requirement, especially when the web page has special interactive performance or design requirements. Disabling scrolling not only keeps users focused but also avoids the clutter caused by scrolling. This article will introduce how to achieve the scroll-disabled effect through HTML and CSS.

1. Disable scrolling through HTML attributes

There is a commonly used attribute in HTML called overflow. This attribute is mainly used to set the handling method of the overflow content of the element. Specifically, you can set the following values:

auto - If the content overflows, the browser automatically adds scroll bars to the element.
visible - If the content overflows, the browser will display the overflow content outside the element.
hidden - If the content overflows, the browser will hide the overflow content.
scroll - The browser always displays scroll bars if the content overflows.
inherit - the value taken from the parent element.

If we want to prohibit the scrolling of the page or a certain element, we only need to set the overflow value to hidden.

The following is a simple HTML sample code:

<!DOCTYPE html>
<html>
<head>
    <title>禁止滚动示例</title>
    <style type="text/css">
        body{
            overflow:hidden;
        }
    </style>
</head>
<body>
    <h1>禁止页面滚动示例</h1>
    <p>这是一段文字内容</p>
    <p>这是另一段文字内容</p>
</body>
</html>

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In this code, we set overflow:hidden to the body element, so the page cannot be scrolled. If you need to disable scrolling of a certain element, you only need to select the corresponding element and set the corresponding value.

2. Disable scrolling through CSS styles

In addition to disabling scrolling through HTML attributes, we can also achieve the same effect through CSS styles. The specific method is to add a fixed positioning to the corresponding element, set its width and height to 100%, and then set the overflow value to auto or hidden.

The following is a sample code:

<!DOCTYPE html>
<html>
<head>
    <title>禁止滚动示例</title>
    <style type="text/css">
        #mask{
            position:fixed;
            top:0;
            left:0;
            z-index:9999;
            background-color:rgba(0,0,0,0.5);
            width:100%;
            height:100%;
            overflow:hidden;
        }
        #content{
            position:relative;
            z-index:1;
            margin:50px auto;
            width:80%;
            height:300px;
            background-color:#fff;
            text-align:center;
            padding-top:100px;
            border-radius: 8px;
        }
    </style>
</head>
<body>
    <h1>禁止滚动示例</h1>
    <div id="mask">
        <div id="content">
            <p>这是一段居中的文字内容</p>
            <button>示例按钮</button>
        </div>
    </div>
    <p>这是另一段文字内容</p>
</body>
</html>

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In this sample code, we first create a mask layer and set the corresponding style for it, setting its width and height to 100 % and disable scrolling. Create another element containing the content, position it relatively, set the z-index to 1, and set the margin value to center it. The above mask layer directly covers the entire page, so the user can only see the content above the mask layer, and the mask layer itself prohibits scrolling.

Summary:

Disabling scrolling in HTML is a common requirement. We can achieve the corresponding function through HTML attributes and CSS styles. By using the overflow attribute and fixed positioning to prohibit the scrolling of elements, the user experience and interaction quality of the web page can be effectively improved.

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