Tuesday, April 24, 2018

HTML Lists


HTML Lists

HTML List Tags
Tag     Description
<ul>    Defines an unordered list
<ol>    Defines an ordered list
<li>      Defines a list item
<dl>    Defines a description list
<dt>    Defines a term in a description list
<dd>   Describes the term in a description list


HTML List Example
An Unordered List:
Item
Item
Item
Item
An Ordered List:
First item
Second item
Third item
Fourth item

Unordered HTML List
An unordered list starts with the <ul> tag. Each list item starts with the <li> tag.

The list items will be marked with bullets (small black circles) by default:

Example
<ul>
  <li>Coffee</li>
  <li>Tea</li>
  <li>Milk</li>
</ul>
»

Unordered HTML List - Choose List Item Marker
The CSS list-style-type property is used to define the style of the list item marker:

Value  Description
disc     Sets the list item marker to a bullet (default)
circle  Sets the list item marker to a circle
square     Sets the list item marker to a square
none   The list items will not be marked
Example - Disc
<ul style="list-style-type:disc">
  <li>Coffee</li>
  <li>Tea</li>
  <li>Milk</li>
</ul>
»
Example - Circle
<ul style="list-style-type:circle">
  <li>Coffee</li>
  <li>Tea</li>
  <li>Milk</li>
</ul>
»
Example - Square
<ul style="list-style-type:square">
  <li>Coffee</li>
  <li>Tea</li>
  <li>Milk</li>
</ul>
»
Example - None
<ul style="list-style-type:none">
  <li>Coffee</li>
  <li>Tea</li>
  <li>Milk</li>
</ul>
»
Ordered HTML List
An ordered list starts with the <ol> tag. Each list item starts with the <li> tag.

The list items will be marked with numbers by default:

Example
<ol>
  <li>Coffee</li>
  <li>Tea</li>
  <li>Milk</li>
</ol>
»
Ordered HTML List - The Type Attribute
The type attribute of the <ol> tag, defines the type of the list item marker:

Type   Description
type="1" The list items will be numbered with numbers (default)
type="A" The list items will be numbered with uppercase letters
type="a"  The list items will be numbered with lowercase letters
type="I"   The list items will be numbered with uppercase roman numbers
type="i"   The list items will be numbered with lowercase roman numbers
Numbers:
<ol type="1">
  <li>Coffee</li>
  <li>Tea</li>
  <li>Milk</li>
</ol>
»
Uppercase Letters:
<ol type="A">
  <li>Coffee</li>
  <li>Tea</li>
  <li>Milk</li>
</ol>
»
Lowercase Letters:
<ol type="a">
  <li>Coffee</li>
  <li>Tea</li>
  <li>Milk</li>
</ol>
»
Uppercase Roman Numbers:
<ol type="I">
  <li>Coffee</li>
  <li>Tea</li>
  <li>Milk</li>
</ol>
»
Lowercase Roman Numbers:
<ol type="i">
  <li>Coffee</li>
  <li>Tea</li>
  <li>Milk</li>
</ol>
»
HTML Description Lists
HTML also supports description lists.

A description list is a list of terms, with a description of each term.

The <dl> tag defines the description list, the <dt> tag defines the term (name), and the <dd> tag describes each term:

Example
<dl>
  <dt>Coffee</dt>
  <dd>- black hot drink</dd>
  <dt>Milk</dt>
  <dd>- white cold drink</dd>
</dl>
»
Nested HTML Lists
List can be nested (lists inside lists):

Example
<ul>
  <li>Coffee</li>
  <li>Tea
    <ul>
      <li>Black tea</li>
      <li>Green tea</li>
    </ul>
  </li>
  <li>Milk</li>
</ul>
»
Note: List items can contain new list, and other HTML elements, like images and links, etc.

Horizontal Lists
HTML lists can be styled in many different ways with CSS.

One popular way is to style a list horizontally, to create a menu:

Example
<!DOCTYPE html>
<html>
<head>
<style>
ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: #333333;
}

li {
    float: left;
}

li a {
    display: block;
    color: white;
    text-align: center;
    padding: 16px;
    text-decoration: none;
}

li a:hover {
    background-color: #111111;
}
</style>
</head>
<body>

<ul>
  <li><a href="#home">Home</a></li>
  <li><a href="#news">News</a></li>
  <li><a href="#contact">Contact</a></li>
  <li><a href="#about">About</a></li>
</ul>

</body>
</html>



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