What are the differences between div and span?

The differences are: 1. div is a block-level element, and span is an inline element; 2. div will automatically occupy a line, while span will not automatically wrap; 3. div is used to wrap larger structures and In layout, span is used to wrap text or other inline elements; 4. div can contain other block-level elements and inline elements, and span can contain other inline elements.

div and span are two common container tags in HTML. They are used to organize and wrap content in web pages, but there are some differences in their use. .

Tag types and semantics:

div is a block-level element, it is a general container and has no specific semantics. It is often used to organize a related piece of content together, such as the main section of a page or a stand-alone module. The default behavior of a div is to occupy one line and wrap automatically.

span is an inline element. It is also a general container and has no specific semantics. It is usually used to wrap text or other inline elements so that they can be controlled through CSS styles.

Default style:

divs and spans do not have any styles by default, they are just simple containers. The div will automatically occupy one line, and the width defaults to 100% of the parent container. Span will not wrap automatically, and the width defaults to the width of the content.

Applicable scenarios:

Since div is a block-level element, it is usually used to wrap larger structures and layouts, such as the head of a web page, navigation bar, Sidebars, footers, etc. divs can be laid out and beautified by setting CSS style attributes such as width, height, border, and background color.

Span is an inline element, which is usually used to wrap text or other inline elements to facilitate their style adjustment and control. span is usually used to set font color, font size, bold text, italic text, etc.

Nesting relationship:

div can contain other block-level elements and inline elements, such as p, h1-h6, ul, li, etc., and can also contain other divs . divs can be nested within other block-level elements, but not within p tags.

Span can contain other inline elements, such as a, strong, em, etc., and can also contain other spans. Spans can be nested within other inline elements or within block-level elements.

In general, div and span are two common HTML tags used to wrap and organize content. div is a block-level element, usually used to wrap larger structures and layouts, while span is an inline element, usually used to wrap text or other inline elements. They have some differences in default styles, applicable scenarios and nesting relationships. Developers can choose which tag to use based on specific needs.

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