Sunday, July 17, 2016

CSS LISTS



Lists are very helpful in conveying a set of either numbered or bullet points. This chapter teaches you how to control list type, position, style, etc., using CSS.

We have the following five CSS properties, which can be used to control lists:

  •     The list-style-type allows you to control the shape or appearance of         the  marker.

  •     The list-style-position specifies whether a long point that wraps to a       second line should align with the first line or start underneath the               start of the marker.

  •     The list-style-image specifies an image for the marker rather than a          bullet point or number.

  •     The list-style serves as shorthand for the preceding properties.

  •     The marker-offset specifies the distance between a marker and the         text in the list.

Now, we will see how to use these properties with examples.


The list-style-type Property

The list-style-type property allows you to control the shape or style of bullet point (also known as a marker) in the case of unordered lists and the style of numbering characters in ordered lists.

Here are the values which can be used for an unordered list −
Value
Description
None
Na
disc (default)    
A filled-in circle
circle     
An empty circle
square
A filled-in square



Here are the values, which can be used for an ordered list −
Value
Description
Example
decimal                    
Number
1,2,3,4,5
decimal-leading-zero
0 before the number       
01, 02, 03, 04, 05
lower-alpha            
Lowercase alphanumeric characters   
a, b, c, d, e
upper-alpha            
Uppercase alphanumeric characters   
A, B, C, D, E
lower-roman          
Lowercase Roman numerals     
i, ii, iii, iv, v
upper-roman         
Uppercase Roman numerals     
I, II, III, IV, V
lower-greek            
The marker is lower-greek            
alpha, beta, gamma
lower-latin  
The marker is lower-latin            
a, b, c, d, e
upper-latin  
The marker is upper-latin            
A, B, C, D, E
hebrew
The marker is traditional Hebrew numbering

armenian
The marker is traditional Armenian numbering      

georgian      
The marker is traditional Georgian numbering        

cjk-ideographic
The marker is plain ideographic numbers       

hiragana      
The marker is hiragana    
a, i, u, e, o, ka, ki
Katakana
The marker is katakana   
A, I, U, E, O, KA, KI
hiragana-iroha
The marker is hiragana-iroha
i, ro, ha, ni, ho, he, to
katakana-iroha
The marker is katakana-iroha

I, RO, HA, NI, HO, HE, TO

Here is an example −

<html>
   <head>
   </head>
   
   <body>
      <ul style="list-style-type:circle;">
         <li>Maths</li>
         <li>Social Science</li>
         <li>Physics</li>
      </ul>
     
      <ul style="list-style-type:square;">
         <li>Maths</li>
         <li>Social Science</li>
         <li>Physics</li>
      </ul>
     
      <ol style="list-style-type:decimal;">
         <li>Maths</li>
         <li>Social Science</li>
         <li>Physics</li>
      </ol>
     
      <ol style="list-style-type:lower-alpha;">
         <li>Maths</li>
         <li>Social Science</li>
         <li>Physics</li>
      </ol>
     
      <ol style="list-style-type:lower-roman;">
         <li>Maths</li>
         <li>Social Science</li>
         <li>Physics</li>
      </ol>
   </body>
   
</html>


try this yourself −



The list-style-position Property

The list-style-position property indicates whether the marker should appear inside or outside of the box containing the bullet points. It can have one the two values −

Value
Description
none    
NA
inside   
If the text goes onto a second line, the text will wrap underneath the marker. It will also appear indented to where the text would have started if the list had a value of outside.

outside                
If the text goes onto a second line, the text will be aligned with the start of the first line (to the right of the bullet).

Here is an example −

<html>
   <head>
   </head>
   
   <body>
      <ul style="list-style-type:circle; list-style-position:outside;">
         <li>Maths</li>
         <li>Social Science</li>
         <li>Physics</li>
      </ul>
     
      <ul style="list-style-type:square;list-style-position:inside;">
         <li>Maths</li>
         <li>Social Science</li>
         <li>Physics</li>
      </ul>
     
      <ol style="list-style-type:decimal;list-style-position:outside;">
         <li>Maths</li>
         <li>Social Science</li>
         <li>Physics</li>
      </ol>
     
      <ol style="list-style-type:lower-alpha;list-style-position:inside;">
         <li>Maths</li>
         <li>Social Science</li>
         <li>Physics</li>
      </ol>
   </body>
   
</html>


TRYU THIS YOURSELF −

The list-style-image Property

The list-style-image allows you to specify an image so that you can use your own bullet style. The syntax is similar to the background-image property with the letters url starting the value of the property followed by the URL in brackets. If it does not find the given image then default bullets are used.

Here is an example −

<html>
   <head>
   </head>
   
   <body>
      <ul>
         <li style="list-style-image: url(/images/bullet.gif);">Maths</li>
         <li>Social Science</li>
         <li>Physics</li>
      </ul>
     
      <ol>
         <li style="list-style-image: url(/images/bullet.gif);">Maths</li>
         <li>Social Science</li>
         <li>Physics</li>
      </ol>
   </body>
   
</html>


TRY IT YOURSELF −

The list-style Property

The list-style allows you to specify all the list properties into a single expression. These properties can appear in any order.

Here is an example −

<html>
   <head>
   </head>
   
   <body>
      <ul style="list-style: inside square;">
         <li>Maths</li>
         <li>Social Science</li>
         <li>Physics</li>
      </ul>
     
      <ol style="list-style: outside upper-alpha;">
         <li>Maths</li>
         <li>Social Science</li>
         <li>Physics</li>
      </ol>
   </body>
   
</html>

It will produce the following result −
The marker-offset Property

The marker-offset property allows you to specify the distance between the marker and the text relating to that marker. Its value should be a length as shown in the following example −

Unfortunately, this property is not supported in IE 6 or Netscape 7.

Here is an example −

<html>
   <head>
   </head>
   
   <body>
      <ul style="list-style: inside square; marker-offset:2em;">
         <li>Maths</li>
         <li>Social Science</li>
         <li>Physics</li>
      </ul>
     
      <ol style="list-style: outside upper-alpha; marker-offset:2cm;">
         <li>Maths</li>
         <li>Social Science</li>
         <li>Physics</li>
      </ol>
   </body>
   
</html>


TRY THIS YOURSELF −

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