How to add a parent to several tags in HTML ?

The <li> tag is used to represent the list of items using HTML. It must be contained in a parent element.
Types of list: 
 

• Ordered list
• Unordered list
• Definition list

Ordered list: The <ol> tag is used to create an ordered list. Each list items start with the tag<li>. 
The attributes are used in ordered list are: 
 

• Type: It can have five values (1, A, a, i).
• Start: Set if any numerical values.
• Values: Used for changing the numbering sequence in the middle of list.

Syntax: 
 

<ol>
   <li>Item1</li>
   <li>Item2</li>
   <li>Item3</li>
</ol>

Example: 
 

Output: 
 

Unordered list: The <ul> tag is used to create an unordered list items. Each list start with <li> tag. The attributes that can be specified with <li> tag are FILLROUND, CIRCLE, SQUARE. By default, disk representation is used. It is not necessary to use </li> for ending the list.
Syntax: 
 

<ul>
   <li>Item1</li>
   <li>Item2</li>
   <li>Item3</li>
</ul>

Example: 
 

Output: 
 

Definition list: The <dl> tag is used to create a definition list. 
The definition list consists of two parts: 
 

• Definition Term <dt>
• Definition description <dd>

Syntax: 
 

<ul>
   <li>Item1</li>
   <li>Item2</li>
   <li>Item3</li>
</ul>

Example: 
 

Output: