What does space mean in html?

Spaces in html: 1. “ ” means ordinary spaces without line breaks; 2. “ ” means half-width spaces; 3. “ ” means full-width spaces; 4. “ ” Indicates narrow spaces; 5. “‌” indicates zero-width non-hyphenated spaces; 6. “‍” indicates zero-width hyphenated spaces.

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

The 6 types of spaces represented in HTML

1： 

It is called No-Break Space, and its full name is No-Break Space. It is the most common space and the space we use the most. In HTML, if you use the space bar as a space, only 1 will not be added up. Use html Only entity representation can be accumulated. The width of this space is affected by the font.

2： 
Half-width space, the full name is En Space, en is the measurement unit of typography, which is half of the width of  . By definition, it is equivalent to half the font size, for example, 5px in a 10px font. Characteristics: the width it occupies is exactly 1/2 the Chinese width, and is basically not affected by the font.

3： 

It is called "full-width space", the full name is Em Space, em is the measurement unit of typography, which is quite at the currently specified number of points. For example, 1 em in a 16px font is 16px. This space also inherits the consistent characteristics of the space family: it is transparent. This space also has a very stable characteristic, that is, the width it occupies is exactly 1 Chinese width, and it is basically not affected by the font.

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4: 
Narrow spaces, The full name is Thin Space. The width occupied is relatively small. It's one-sixth the width.

5：‌

Zero Width Non Joiner, the full name is Zero Width Non Joiner, referred to as "ZWNJ", is a non-printing The characters are placed between the two characters of the electronic text, suppressing the ligatures that would otherwise occur, and instead drawing them in the original glyphs of the two characters. The zero-width non-joiner character in Unicode is mapped to "(zero width non-joiner, U 200C)", and the HTML character value reference is: ‌

6：‍
It is called Zero Width Joiner, the full name is Zero Width Joiner, referred to as "ZWJ", it is a non-printing character, placed in some languages ​​that require complex typesetting (such as Arabic, Hindi) Between the two characters, the two characters that would not have been hyphenated have a hyphenated effect. The Unicode code point for the zero-width hyphen is U 200D (HTML: ‍ ‍).

In addition, the browser will also parse the following characters as whitespace: space ( ), tab stop ( ), line feed ( ) and carriage return ( ) and (　) and so on.

Note:

 The width of regular spaces can run in all major browsers. Several other spaces such as  ,  ,  , ‌, ‍ are in The width varies in different browsers.

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