Changing link text

Hi. I have a novice CSS question. I looked this up on the CSS reference sites, but I want to make sure I enter this in correctly so I don’t mess anything up, as I am new to CSS customization.

I would like to customize the link text on my blog. I’d like it to have the following properties
– appear in blue (I suppose any blue commonly supported on most Web browsers would be good)
– would like the link text to be underlined (it is currently set to be underlined only when the visitor clicks their cursor over the link)
– finally, I’d like the link text to not be in bold.

If you take a look at my blog, http://behnaz.info, you can see how links are currently displayed.

I guess I would have to change the body rule under my CSS stylesheet to apply the changes I want. It currently looks like this:

body {

font:0.625em arial, sans-serif;
line-height:19px;
}

Can anyone tell me what code I need to insert to get blue and underlined link text?

Thanks.