Where do I go to enter my CSS?

People say to put

CODE: ----------SELECT CONTENT
.postprofile a img {max-width:100px}

Into your CSS, how do I enter the CSS? Where do I find it?
I want to make my profile pics not so big.

Go to ACP --> Display --> Colors --> Click on the CSS Stylesheet tab next to the color tab

Thank you!


Legend should really be staff, he answers most of my questions.

Trust me i shouldn't. Im not a trustworthy person sometimes. If you have some questions feel free to ask and I will be glad to help you.

And I am glad to have been of help to you