Is li a single tag in HTML5?-Front-end Q&A-php.cn

In HTML5, li is not a single tag, but a double tag. "

" and "
" appear in pairs and are used to define list items; the li tag is available In ordered lists, unordered lists, and menu lists, the syntax is "
list item value
... tag name>".

Is li a single tag in HTML5?

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

In HTML, keywords whose tags are surrounded by angle brackets usually appear in pairs, such as

and

. This The species is called "double-marked". Opening and closing tags are also known as opening tags and closing tags.
      
      There are also tags presented separately, such as:, etc. This type of tag is called "single tag".
      Generally, tags that appear in pairs have their content in the middle of the two tags.

      So li is a single tag? Or double marking?
      Let's take a look at how it works:
      
        Coffee
 Tea
 Milk
 
       
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      As you can see, theli tags are both "
      " and "" They appear in pairs, so li is a double marker.
      
      
      Tags define list items.

      tags can be used in ordered lists (
       
        ), unordered lists (
        
         ) and menu lists (
         
          ).
          
          Example:
          
               HTML有序列表 
  煮米饭的步骤：
  将水煮沸
 加入一勺米
 搅拌均匀
 继续煮10分钟
 
  
           
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          Ordered lists require the use of
          
           and
           tags:
            
             
              
               is the abbreviation of order list, which represents an ordered list. It can number each item in the list, starting from the number 1 by default.
               
               ##
               is the abbreviation of list item, which represents each item in the list. The number of
               in
                
                 indicates how many pieces of content there are. List items can contain text, images, links, etc., or even another list.
                 ##Note that
                 
                  is generally used in conjunction with
                  and will not appear alone, and it is not recommended to use it directly in
                   
                    except for
                    other tags.
                   
                 
                
              
            
            
                 HTML无序列表 
  早餐的种类：
  鸡蛋
 牛奶
 面包
 生菜
 
  
             
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Unordered lists require the use of
            
             and
             tags:

              
               
                is unordered Short for list, which represents an unordered list.
                
                
                 is the same as
                 in
                  
                   , indicating each item in the list. By default, each item in an unordered list is represented by
                   ●symbols.##Note that
                    
                     is generally used in conjunction with
                     and will not appear alone, and it is not recommended to use it directly in
                      
                       except for
                       other tags.
                       
                               
       
 
                        
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