angular material icons is not working code example

Example 1: properly import mat icon angular 10

// In Angular in style.css
@import 'https://fonts.googleapis.com/icon?family=Material+Icons';

Example 2: mat icon not working

@import url("https://fonts.googleapis.com/icon?family=Material+Icons");

Example 3: material icons not working

"styles": [
  "node_modules/material-design-icons/iconfont/material-icons.css"
]