css screen width size code example
Example 1: width in % of a screen css
1vw = 1% of viewport width
1vh = 1% of viewport height
Example 2: screen sizes for css media
<meta name="viewport" content="width=device-width, initial-scale=1" />
1vw = 1% of viewport width
1vh = 1% of viewport height
<meta name="viewport" content="width=device-width, initial-scale=1" />