Consider using the following code snippet:
<link rel="stylesheet" type="text/css" href="css/style.css" >
in place of
href="../css/style.css
You seem to be missing a right apostrophe. For further assistance, you can refer to BalusC's answer.
Note:
I also suggest creating a resources folder at the same level as WEB-INF. Within the resources folder, create a css subfolder and then reference the css file like so:
WEB-INF
resources
--css
--styles.css
--js
--scripts.js
Here is how you can link the css file with your page:
<link rel="stylesheet" type="text/css" href="resources/css/styles.css" />
This method has been effective in my web project with everything functioning correctly.