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What are the attributes of whitespace before CSS text?

青灯夜游
青灯夜游Original
2022-09-16 18:45:112170browse

The attributes of white space before CSS text include: 1. margin-left attribute, which can set the left margin of text elements. The syntax is "text element {margin-left: margin value;}"; 2. padding The -left attribute can set the left inner margin of the text element, the syntax is "text element {padding-left: margin value;}"; 3. The text-indent attribute can specify the indentation of the first line of text in the text block, the syntax "Text element {text-indent: indent value;}".

What are the attributes of whitespace before CSS text?

The operating environment of this tutorial: Windows 7 system, CSS3&&HTML5 version, Dell G3 computer.

There are three attributes to implement the white space before CSS text:

  • margin-left

  • ##padding -left

  • text-indent

1、margin-left

margin-left attribute You can set the left margin of text elements.

ValueDescription##length%Example:
Definition fixed left margin. The default value is 0.
Defines the left margin as a percentage based on the total width of the parent object. 
<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<style>
			p{
				border: 1px solid red;
			}
			p.ex1 {
				margin-left: 2cm;
			}
		</style>
	</head>

	<body>

		<p>一个没有指定外边距大小的段落。</p>
		<p class="ex1">一个左外边距为2厘米的段落。</p>
		<p>一个没有指定外边距大小的段落。</p>

	</body>
</html>

What are the attributes of whitespace before CSS text?##2、padding-left

The padding-left property sets the left padding (padding) of text elements.

ValueDescription##length%Example: 
<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<style>
			p{
				border: 1px solid red;
			}
			p.ex1 {
				padding-left: 2cm;
			}
		</style>
	</head>

	<body>

		<p>一个没有指定内边距大小的段落。</p>
		<p class="ex1">一个左内边距为2厘米的段落。</p>
		<p>一个没有指定内边距大小的段落。</p>

	</body>
</html>
specifies Fixed left padding value in specific units, such as pixels, centimeters, etc. The default value is 0px.
Defines a percentage left padding based on the width of the parent element. This value will not work as expected in all browsers.

##3、text-indent

What are the attributes of whitespace before CSS text?

The text-indent attribute specifies the indentation of the first line of text in a text block.

Note: Negative values ​​are allowed. If the value is negative, indent the first line left.

Value

Description##lengthDefinition fixed of indentation. Default value: 0. % Defines the indent based on a percentage of the parent element's width. Example: 
<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<style>
			p{
				border: 1px solid red;
			}
			p.ex1 {
				text-indent:50px;
			}
		</style>
	</head>

	<body>

		<p>一个没有指定首行缩进的段落。</p>
		<p class="ex1">首行缩进段落50像素。</p>
		<p>一个没有指定首行缩进的段落。</p>

	</body>
</html>
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