Horizontal lines are used to visually break-up sections of a document. The <hr> tag creates a line from the current position in the document to the right margin and breaks the line accordingly.
For example, you may want to give a line between two paragraphs as in the given example below:
Example :
<!DOCTYPE html>
<html>
<head>
<title>Horizontal Line Example</title>
</head>
<body>
<p>This is paragraph one and should be on top</p>
<hr />
<p>This is paragraph two and should be at bottom</p>
</body>
</html>
This will produce the following result:
This is paragraph one and should be on top
This is paragraph two and should be at bottom
Again <hr /> tag is an example of the empty element, where you do not need opening and closing tags, as there is nothing to go in between them.
The <hr /> element has a space between the characters hr and the forward slash. If you omit this space, older browsers will have trouble rendering the horizontal line, while if you miss the forward slash character and just use <hr> it is not valid in XHTML
For example, you may want to give a line between two paragraphs as in the given example below:
Example :
<!DOCTYPE html>
<html>
<head>
<title>Horizontal Line Example</title>
</head>
<body>
<p>This is paragraph one and should be on top</p>
<hr />
<p>This is paragraph two and should be at bottom</p>
</body>
</html>
This will produce the following result:
This is paragraph one and should be on top
This is paragraph two and should be at bottom
Again <hr /> tag is an example of the empty element, where you do not need opening and closing tags, as there is nothing to go in between them.
The <hr /> element has a space between the characters hr and the forward slash. If you omit this space, older browsers will have trouble rendering the horizontal line, while if you miss the forward slash character and just use <hr> it is not valid in XHTML
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