We can use the CSS syntax to control the form of a hyperlink, color change, why the link need to use the underline distinguish and color? The main reason is mainly considering 1 bad eyesight, in 2, color-blind people...
the following a link like this: we do not been when click on the hyperlink text without underline, shown as blue; When you have underlined the mouse on a link, link text displayed as red; When click the link, link without underline, display for the green.
implementation method is very simple, in the source code <Head> And <Head> Add the following CSS syntax between control:

 code is as follows: 


<Style type="text/CSS" >
<! -
a: link {text - decoration: none; Color: blue}
a: active {text - decoration: blink}
a: hover {text - decoration: underline; Color: red}
a: visited {text - decoration: none; Color: green}
- >
</style>

:
a: link refers to the normal, which has not been visited links;
a: active refers to is point links;
a: hover refers to the mouse on a link;
a: visited to have visited links;
text - decoration means text decoration effect;
none parameter indicates the hyperlink text not underlined;
underline parameter indicates the hyperlink text has underlined
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demo: let the page link to remove the underline

 code is as follows: 


<Style type="text/CSS" >
<! -
A {text - decoration: none}
- >
</style>

insert code in <Head> </head> . <Title> Before you
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use CSS implementation links dotted the underline \ ordinary underline effect

 code is as follows: 


a {
color: # 3399 ff;
the font - weight: Normal;/* common CSS font effect can be changed to bold bold if remove the trip then the default is not underlined */
text - decoration: none;/* CSS underline effects: no underline */
}
a: hover {
color: # 4499 ee;
text - decoration: none;/* CSS underline effects: no underline */
border - bottom: 1 px # 0099 cc/* CSS dotted with only a box at the bottom of the frame for the dotted line */
}

a: {} is used to control the connection effect
a: hover {} : is used to control the effect of the mouse.
# 0 - #


This concludes the body part