Trying to change Wordpress theme, but changes to CSS do nothing

I am in no way an expert, but in the past, I have changed the CSS in the editor, and been able to modify the text, link color, etc. I tried to do the same with one of my sites, but after I change the CSS and look at the site, nothing happens. I wanted to change the link color, so I changed this:

a {
text-decoration:none;
color:#0000ff;
}

a:hover { color:#0000ff; }

Any suggestions? If it helps, you can view my website here to check out the source code. Your help is greatly appreciated...

 

By changing that you are changing general text link's colour. But in case the you want to change the colours of text links inside a div called "ads", you have to check the CSS for things similar to this because it can override above:

.ads a {

}

Code (markup):

 

Thank you for the suggestion. It looks like what I changed before worked, so I guess I should have closed my browser or something for the changes to take effect. Now my only problem is the right side navigation - anyone see what I need to change so the links will turn blue?

 

Where ? We have no idea what site you are talking about.

 

Sorry - I put a link to it in the original post. You can view it HERE. I want the "Recent Entries" links to be blue as well.