viewport css example
Example 1: how to set viewport in html
<meta name="viewport" content="width=device-width, initial-scale=1.0">Example 2: css viewport
<meta name="viewport" content="width=device-width, initial-scale=0.9, user-scalable=no"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="viewport" content="width=device-width, initial-scale=0.9, user-scalable=no">