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html scroll settings

PHPz
Release： 2023-05-15 16:51:09
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As website design becomes more and more complex, user interfaces become more and more diverse, and scroll settings have become a design element that cannot be ignored. In HTML, various scrolling effects can be achieved through CSS and JavaScript. This article will introduce scrolling settings in HTML, including the following aspects:

  1. Scrolling settings of CSS

In CSS, you can use the following attributes to set the scrolling of elements Behavior:

  • overflow: Set whether the scrolling content of the element overflows its display area. Optional values ​​include visible (default value, content will not be cropped), hidden (content will be cropped), scroll (scroll bars are displayed), and auto (the browser automatically determines whether to display scroll bars).
  • overflow-x and overflow-y: Set the horizontal and vertical scrolling behavior of the element respectively. Optional values ​​are the same as overflow.
  • overflow-wrap: When the text content is too long, set whether to wrap automatically.
  • white-space: Similar to overflow-wrap, set whether the text content will automatically wrap.

For example, the following code sets the content of a div element to be scrollable and automatically hides the scroll bar when the height of the element is exceeded: 

<style>
    .scrollable {
        height: 200px;
        overflow-y: auto;
    }
</style>
<div class="scrollable">
    <p>这是一段很长的内容，超过了200px的高度，所以会显示滚动条。</p>
</div>
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  1. Scroll settings for JavaScript

In JavaScript, you can use the following methods to achieve the scrolling effect of elements:

  • scroll() method: Let the element scroll a certain distance in the specified direction.
  • scrollTo() and scrollBy() methods: used for precise scrolling and relative scrolling respectively. You can specify the specific position or distance to scroll the element.
  • scrollTop and scrollLeft properties: Get or set the scroll position of the element.

For example, the following code uses JavaScript to implement the automatic scrolling effect of a div element: 

<script>
    var elem = document.querySelector('.scrollable');
    var top = 0;
    setInterval(function() {
        top += 1;
        elem.scrollTop = top;
    }, 10);
</script>
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  1. Other scrolling settings

In addition to CSS and JavaScript and HTML also include some other scrolling settings, such as: