Recommended 10 articles for advanced grammar

[Guide] Selector grouping You can group selectors so that the grouped selectors can share the same declaration. Separate the selectors that need to be grouped with commas. In the following example, we group all the header elements. All the caption elements are green. Grouping of H1,H2,H3,H4,H5 selectors you can group selectors so that the grouped selectors can share the same declaration. Separate the selectors that need to be grouped with commas. In the following example, we group all the header elements. All the caption elements are green. H1,h2,h3,h4,h5,h6 {color:green;} Inheritance and its problems depending on the CSS, child elements inherit attributes from the parent element. But it doesn't always work this way. Look at the following rule: body {font-family:verdana, Sans-serif;} According to the above rule, the site's B

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Introduction: PHP100 Chinese network is the first in the country to share PHP resource-based professional website, but also provides the PHP Chinese community. For PHP Learning researchers: The latest PHP information, original content, open source code and PHP video tutorials and other related content.

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Description: A colleague asked me the following JavaScript code a few days ago how to understand