Preformatted text
In HTML, you can use the <pre> tag to display preformatted text. This tag is used to indicate that the enclosed text should be displayed exactly as it appears in the HTML source code, with all white space, line breaks, and indentation preserved.
Here's an example:
<pre> This is some preformatted text. It includes line breaks, indentation, and other formatting that would be ignored if it were displayed as normal text. </pre>
In this example, the <pre> tag is used to enclose some preformatted text. When rendered in the browser, the text will be displayed with all white space, line breaks, and indentation preserved, as shown in the HTML source code.
The <pre> tag is useful for displaying code snippets, ASCII art, or other text that requires precise formatting. It can also be used to preserve the formatting of text that is copied and pasted from other sources, such as email messages or text files.
It's important to note that the <pre> tag should be used only for text that is genuinely preformatted. Using it to force spacing or indentation can result in unexpected and inconsistent formatting, and may make your content more difficult to read and understand.
bdo (Bi-Directional Override)
The Bi-Directional Override (BDO) tag in HTML is used to override the default directionality of text on a web page. By default, text on a web page is displayed from left to right, which is the direction of most written languages. However, some languages, such as Arabic and Hebrew, are written from right to left.
The BDO tag allows you to override the default directionality of text and specify a different direction for a particular section of text. The tag has two attributes, dir and lang, which can be used to specify the direction and language of the text.
Here's an example of using the BDO tag to display text in Hebrew:
<p>This is some English text. <bdo dir="rtl" lang="he">זהו טקסט בעברית</bdo>.</p>
In this example, the BDO tag is used to display the text "זהו טקסט בעברית" in Hebrew, which is written from right to left. The dir attribute is set to "rtl" (right-to-left), and the lang attribute is set to "he" (Hebrew).
The BDO tag can be useful for displaying text in languages that are written from right to left, or for displaying text in other non-standard directions. However, it should be used sparingly, as it can make your content more difficult to read and understand for users who are not familiar with the directionality of the text.
bdi (Bi-Directional Isolation)
The Bi-Directional Isolation (BDI) tag in HTML is used to isolate a span of text that might be in a different direction from the surrounding text. The tag tells the browser to treat the enclosed text as if it were in a separate paragraph or block, and to apply any necessary text directionality and other styling.
The BDI tag is particularly useful for displaying text that includes a mix of left-to-right and right-to-left scripts, such as Arabic and English, or Hebrew and English. Without the BDI tag, the text may display in the wrong order, or the script may be reversed or appear garbled.
Here's an example of using the BDI tag to display mixed-direction text:
<p>Here's some mixed-direction text: <bdi>السلام عليكم and Hello</bdi>.</p>
In this example, the BDI tag is used to enclose the mixed-direction text "السلام عليكم and Hello". The browser will automatically recognize that the text is in two different directions, and apply the appropriate text directionality and styling to each part of the text.
It's important to note that the BDI tag should be used only for text that is truly mixed-directional. Using it for text that is all left-to-right or all right-to-left may result in unexpected or inconsistent rendering, and may make your content more difficult to read and understand.
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