Do you have any code to show us?
You can either link in CSS, or write it directly to the page. If you are writing directly to the page (can get messy as you build more and more complex sites) then you would do this:
<style type = "text/css" > /* CODE GOES HERE */ </style>
Otherwise to link in a stylesheet it would be:
<link rel = "stylesheet" type = "text/css" href = "/LOCATION.css" />
If using either of those doesn't work, then there might be something wrong with your CSS itself, the location you are retrieving it from or on some networks (such as work and school networks), pulling external files is sometimes restricted.
As stated by harris,please show up your code to expect better help.Most propably the way you are using this is wrong.
There are three ways of inserting a style sheet:
External style sheet
<link rel="stylesheet" type="text/css" href="mystyle.css">
Internal style sheet
<p style="color:sienna;margin-left:20px">This is a paragraph.</p>
<p style="color:red;margin:20px">your content</p>
you can start with simple structure in you site, when you get used to it, you can use other structures
Did you try googling for something like "CSS Tutorial"? Google and a common sense search phrase should always be your first port of call rather than a question on a forum. I did some of the work for you so here are a few links.
Enough to get you started, I think
I'm trying to design a landing page for my API product, and it seriously is lacking any images. Where are the best places to get those Photoshop-ready backdrops that all of the paid themes seem to have? Deviant Art? Looking for ones that are optimized for this sorta thing, and ...
What should happen is when i click the log in button, the container for the log in form should become hidden and the sidebar, search bar, tiles and log out button should appear. I sometimes experience that if i have to click the log in button twice for it to ...