Check out example codes for "html style sheet". It will help you in understanding the concepts better.

Code Example 1

<link rel="stylesheet" href="styles.css">

Code Example 2

<link rel="stylesheet" type="text/css" href="mystyle.css">

Code Example 3

<link rel="stylesheet" type="text/css" href="mystyle.css">

Code Example 4

<link rel="stylesheet" type="text/css" href="style.css">

Learn ReactJs, React Native from akashmittal.com