In HTML, <em> is a tag used to emphasize text. When you wrap text with the <em> tag, it typically displays that text in italics. This is often used to highlight important words or phrases within a sentence.

Here's a simple example:

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<p>This is an <em>important</em> message.</p>

In this case, "important" would appear in italics in the browser, indicating its significance. You can learn more about it on the MDN web docs.

The em is a formatting element used in HTML to indicate emphasis. It is typically displayed as italicized text by default in most browsers. Its purpose is to highlight important or emphasized words or phrases within a paragraph or block of text. The em tag does not have any specific styling associated with it and its appearance can be modified using CSS.

Here's an example:

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<p>This is a <em>very important</em> paragraph.</p>

In this example, the word "very important" will be displayed in italicized style to draw attention to it.

You can put the <strong> tag into your HTML code wherever you want to emphasize text. The <strong> tag is used to make text bold. Here's an example of how you can use it:

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<p>This is a <strong>bold</strong> text.</p>

In the example above, the word "bold" will be displayed in bold.

<em> is an HTML tag that stands for "emphasis". It is used to emphasize or give importance to a certain part of text within a web page. The content wrapped with <em> is typically displayed in italic style by default, but the exact presentation may vary depending on the browser and CSS applied to the page.

Here is an example of how <em> can be used in HTML:

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<p>This is <em>important</em> information.</p>

In this example, the word "important" will be displayed in italics to highlight its significance in the sentence.

The element in HTML is used to indicate emphasis on text. It will typically render as italicized text in most browsers. Here's an example:

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<p>This is a <em>very important</em> message.</p>

<em> is an HTML tag that is used to emphasize text. It represents a section of text that should be displayed in italic or emphasized font. Here's an example of how to use it:

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<p>This <em>text</em> is emphasized.</p>

In this example, the word "text" will be displayed in italics because it is wrapped in the <em> tag.

In HTML, strong and em are used to add emphasis to text. However, their meanings and usage are different.

strong is used to indicate the importance of its contents. It renders the text with a bold font by default, but the main purpose is to give importance to the content for screen readers, search engines and other applications that might access the document programmatically. It doesn't imply any specific visual effect on the text, but browsers use bold to represent it by default.

Example:

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<p>This text is <strong>important</strong>.</p>

em is used to indicate emphasis on its contents. It renders the text with italic font by default, but the main purpose is to give emphasis to the content for screen readers, search engines and other applications that might access the document programmatically. It doesn't imply any specific visual effect on the text, but browsers use italic to represent it by default.

Example:

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<p>This text is <em>emphasized</em>.</p>

Overall, strong is used to provide strong importance, while em is used to provide a mild emphasis. It's important to use them with their original meanings to ensure that content is accessible as intended.