The HTML lists tag is used for specifying a 
list item in ordered, unordered and menu lists. Lists commonly are found in 
documents, including web pages. They are an easy and effective way to itemize 
such things as elements, components, or ingredients. The most common HTML lists 
are ordered and unordered lists.
unordered list
The HTML 
<ul> tag 
is used to define an unordered list. Unordered lists are straight lists with a 
graphical bullet. You can choose between different types of bullets using the 
type attribute. Each list item can have a different bullet. 
Example
<ul>
       
<li>Example 
of list</li>
       
<li>Nice 
list!</li>
       
<li>Last 
list item!</li>
    
</ul>
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Type attribute of <ul> List
Specifies the shape of the bullets of each list 
item.
Type= Circle
<ul
type="circle">
       
<li>Example 
of list</li>
       
<li>Nice 
list!</li>
       
<li>Last 
list item!</li>
   
</ul>
 
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Type=square
<ul
type="square">
       
<li>Example 
of list</li>
       
<li>Nice 
list!</li>
       
<li>Last 
list item!</li>
    
</ul>
 
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Ordered list
Ordered lists allow you to create lists where 
the items are in sequential, numerical order.
 
<ol>
      <li>Example 
of list</li>
      <li>Nice 
list!</li>
      <li>Last 
list item!</li>
    
</ol>
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Start attribute of <ol> List
Specifies a number to start the list with 
instead of 1.
<ol
start="5">
       
<li>Example 
of list</li>
       
<li>Nice 
list!</li>
       
<li>Last 
list item!</li>
   
</ol>
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Type attribute of <ol> List
Specifies the numbering system of the ordered 
list.
1 - Default
A - Uppercase letters e.g. A,B,C,D
a - Lowercase letters
I - Uppercase Roman Numerals e.g. I,II,III,IV
i - Lowercase Roman Numerals e.g. i,ii,iii,iv  
<ol
start="5"
type="i">
       
<li>Example 
of list</li>
       
<li>Nice 
list!</li>
       
<li>Last 
list item!</li>
   
</ol>
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Definition List
The HTML <dl> tag is used for declaring a 
definition list. A definition list is a consists of terms (<dt>) and definitions 
(<dd>). This type of list does not contain any attribute.
<dt> tag
The 
<dd> tag is used for specifying a definition 
description in a definition list.
<dl> tag 
The <dt> tag is used for specifying a 
definition term in a definition list.
For Example
<dl>
       
<dt><strong>Article 
Defination</strong></dt>
       
<dd>Article 
is easy to understand</dd>
       
<dt><strong>Article 
Keyword</strong></dt>
       
<dd>Article 
keyword should be related to the article</dd>
       
<dt><strong>Article 
Category</strong></dt>
       
<dd>Article 
category related to the article</dd>
    
</dl>
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Nested lists
Many times you want to create sublists or 
subitems. You can do this by using nested lists.
<ol>
           
<li>List 
item1</li>
           
<li>List 
item2</li>
           
<li>List 
item3
               
<ol
type="a">
                   
<li>sub 
list item 3.1</li>
                    <li>sub 
list item 3.2</li>
                   
<li>sub 
list item 3.2</li>
               
</ol>
           
</li>
           
<li>Last 
list item!</li>
       
</ol>
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