CSS 伪元素 (Pseudo-elements)实例
CSS 实例
01制作首字母特效
<!DOCTYPE html><html> <head> <meta charset="utf-8"> <title>01制作首字母特效</title> <style type="text/css"> p:first-letter { color: #ff0000; font-size: xx-large; } </style> </head> <body> <p> You can use the :first-letter pseudo-element to add a special effect to the first letter of a text! </p> </body></html> 02制作首行特效
<!DOCTYPE html><html> <head> <meta charset="utf-8"> <title>02制作首行特效</title> <style type="text/css"> p:first-line { color: #ff0000; font-variant: small-caps; } </style> </head> <body> <p> You can use the :first-line pseudo-element to add a special effect to the first line of a text! </p> </body></html> CSS 伪元素 (Pseudo-elements) 总结
Difficulty in updating caching of official account web pages: How to avoid the old cache affecting the user experience after version update?Mar 04, 2025 pm 12:32 PMThe official account web page update cache, this thing is simple and simple, and it is complicated enough to drink a pot of it. You worked hard to update the official account article, but the user still opened the old version. Who can bear the taste? In this article, let’s take a look at the twists and turns behind this and how to solve this problem gracefully. After reading it, you can easily deal with various caching problems, allowing your users to always experience the freshest content. Let’s talk about the basics first. To put it bluntly, in order to improve access speed, the browser or server stores some static resources (such as pictures, CSS, JS) or page content. Next time you access it, you can directly retrieve it from the cache without having to download it again, and it is naturally fast. But this thing is also a double-edged sword. The new version is online,
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How to efficiently add stroke effects to PNG images on web pages?Mar 04, 2025 pm 02:39 PMThis article demonstrates efficient PNG border addition to webpages using CSS. It argues that CSS offers superior performance compared to JavaScript or libraries, detailing how to adjust border width, style, and color for subtle or prominent effect
What is the purpose of the <datalist> element?Mar 21, 2025 pm 12:33 PMThe article discusses the HTML <datalist> element, which enhances forms by providing autocomplete suggestions, improving user experience and reducing errors.Character count: 159
What is the purpose of the <progress> element?Mar 21, 2025 pm 12:34 PMThe article discusses the HTML <progress> element, its purpose, styling, and differences from the <meter> element. The main focus is on using <progress> for task completion and <meter> for stati
How do I use the HTML5 <time> element to represent dates and times semantically?Mar 12, 2025 pm 04:05 PMThis article explains the HTML5 <time> element for semantic date/time representation. It emphasizes the importance of the datetime attribute for machine readability (ISO 8601 format) alongside human-readable text, boosting accessibilit
What is the purpose of the <meter> element?Mar 21, 2025 pm 12:35 PMThe article discusses the HTML <meter> element, used for displaying scalar or fractional values within a range, and its common applications in web development. It differentiates <meter> from <progress> and ex
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