The difference between iframe and div is that iframe is mainly used to introduce external content. It can load the content of other websites or divide a web page into multiple areas. Each area has its own independent browsing context, while div is mainly used to introduce external content. Blocks for dividing and organizing content, for layout and style control.
The operating system for this tutorial: Windows 10 system, DELL G3 computer.
iframe and div are two commonly used tags in HTML. They have different functions and usages. Below I will introduce their differences respectively.
iframe:
iframe is an inline frame tag that can embed an HTML document within another HTML document. It can be used to display content from other websites, or to split a web page into multiple areas so that multiple web pages can be displayed simultaneously. The characteristics of iframe are as follows:
Introducing external content: iframe can load the content of other websites, which means that you can embed the content of other websites in your own web pages, such as videos, maps, etc.
Multiple iframes: The same page can contain multiple iframes, each iframe has its own independent internal document and style.
Independent browsing context: Each iframe has its own browsing context, that is to say, they can independently perform page navigation, form submission and other operations without interfering with each other.
Security: Because iframes can load content from other websites, there are security risks. Malicious websites can use iframes to load content that deceives users or conduct cross-site scripting attacks.
div:
div is a container tag used to divide and organize content blocks in HTML documents. It itself has no specific semantics and is mainly used for layout and style control. The characteristics of div are as follows:
Split page structure: div can divide a web page into multiple blocks, and each block can be independently layout and style controlled.
Semanticization: The div itself has no specific semantics, but it can be given specific meaning and style by adding a class or id.
Cooperate with CSS: divs are usually used with CSS to select and control the style of divs through CSS selectors.
Unable to introduce external content: div itself cannot load external HTML content, it is just a container used to wrap other HTML elements.
Summary:
iframe and div are commonly used tags in HTML, but they have different functions and usages. iframe is mainly used to introduce external content, which can load content from other websites or divide a web page into multiple areas. Each area has its own independent browsing context. The div is mainly used to divide and organize content blocks for layout and style control.
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