how to use font google in css code example

Example 1: import google font css

@import url('https://fonts.googleapis.com/css?family=Open+Sans&display=swap');
.generic_class {
	font-family: 'Open Sans', sans-serif;
}

Example 2: how to setup google fonts in html and css

font-family: '<custom_font_you_selected>', <fallback_font>