How to change link colours?

I’m new to wordpress and would like to change the link colours in my website. I have found the approproate code (i think) but when I change the colour values nothing happens.

/*--------------------------------------------------------------
5.1 Links
--------------------------------------------------------------*/
a {
	color: #F3C861;
	text-decoration: none;
	-o-transition: color .3s ease-in-out;
	-moz-transition: color .3s ease-in-out;
	-webkit-transition: color .3s ease-in-out;
	transition: color .3s ease-in-out;
}

a:hover,
a:focus,
a:active {
	color: #F3C861;
}

a:hover,
a:active {
	outline: 0;
}

.smallPart a, .smallPart a:hover, .smallPart a:focus, .smallPart a:active {
	color: #F3C861;
}

.site-header a, .read-link a, .site-title a:hover, .site-title a:focus {
	color: #ffffff;
}

Thanks in advance!