/ / less file
// define the variable @rem: 375/16rem;
- { padding: 0; margin: 0; }
html { font-size: 100/@rem; }
body { font-size: 18/@rem; }
.app { background-color: pink; width: 375/@rem; height: 300/@rem; }
Nihao </div> <div> basdbbasdb </div> js (function() {// calculate screen width var vW = document.documentElement.clientWidth; Var w = vw/16; / / set the font size of the root document. The documentElement. Style.css. FontSize = w + 'px'; }) ()Copy the code