Google fonts were working perfectly till I imported the W3.css file. I even tried to shift the google fonts link to the beginning of the document. It starts working as soon as I remove the link to W3.css file. Google fonts working:
<head>
<link href="https://fonts.googleapis.com/css?family=Concert+One"rel="stylesheet">
</head>
Google fonts not working:
<head>
<link href="https://fonts.googleapis.com/css?family=Concert+One"rel="stylesheet">
<link rel="stylesheet" href="https://www.w3schools.com/w3css/4/w3.css">
</head>