Answers for "how to import in css file"

add css to an html file

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

import css in another css file

@import "navigation.css"; /* Via string */

or

@import url("navigation.css"); /* Via url */

how to import a css file in html

To add, make a stylesheet and to import we write <link rel="stylesheet" href="styles.css">