HTML is a markup language used to build web pages. It provides a rich set of tags and attributes that can achieve various web page layout effects. Among them, fixed positioning is a commonly used layout method, which allows elements to be displayed at a fixed position relative to the browser window or parent element, and is not affected by scrolling. However, not all HTML elements support fixed positioning. This article will analyze the reasons why fixed positioning is not supported in HTML and provide specific code examples.
First, we need to understand the syntax of fixed positioning. In HTML, CSS styles are used to control fixed positioning. We can change the positioning of elements through the position attribute in CSS. The fixed positioning method is to use position: fixed;, which can fix the element to a certain position on the screen or the parent element.
However, not all HTML elements support fixed positioning. According to W3C standards, the following elements do not support fixed positioning:
The sample code is as follows:
<span style="position: fixed; top: 20px; left: 20px;">This is a fixed inline element!</span>
| , etc. Fixing some elements of the table will destroy the structure of the table and lead to disordered layout. The sample code is as follows: <table>
<tr>
<td style="position: fixed; top: 20px; left: 20px;">This is a fixed table cell!</td>
</tr>
</table>Copy after login
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