Using REM principle, 62.5%, compressing web pages according to the equal ratio of screen width
When we write web pages, we often need to take into account the display of web pages in different screen widths.
Sometimes in order to save time, no time to write new pages, but also for compatibility considerations, this requires the use of equal-ratio compression.
The core of isometric compression is rem
Two, text(1) Use of REM
Rem is a new unit attribute in CSS3
Unit of relative length, multiple of font-size calculated relative to...