[NSFW] Visited link colour will not change no matter what I do

I have read several of the explanations for how to do this.
I am on the 2012 theme.
Visited links are a grotty grey as standard and links are a murky blue. I have used the following code and it changes the link colour to a bright blue as I wished and the hover colour to magenta, but no matter what I do the visited colour stays the grotty grey and there is no hover colour over visited links. I have tried all sorts of solutions from the forum and it still won’t change.

/* Links */
.entry-content a:visited, .
comment-content a:visited {
color: #33cc00;
text-decoration: underline;
}

a {
outline: none;
color: #0033ff;
text-decoration: underline;
}

a:hover {
color: #ff00ff;
text-decoration: underline;
}

Can someone help me on this? So, to reiterate the problem is that I want to change the visited colour and the colour when a visited link is hovered over. Everything else is fine.

Angie
My site https://www.angelagoodnight.com/sexblog – warning this is an 18+ site!