Critical css

"above the fold" is html you see on load, like the header
header > h1 { /* !Critical */ margin: 300px; }//annotated with a comment in main.css
npm install -g postcss-split main.css insert result main-critical.css in <head><style> 
<script id="load"> (https://github.com/filamentgroup/loadCSS)("main-critical.css", document.getElementById("load"));
<script> function insertLink(_url, _media) { 
 var link = document.createElement('link'); l.rel = 'stylesheet'; l.type = 'text/css'; l.href = _url; l.media = _media;
 document.getElementsByTagName('head')[0].appendChild(link)}
function dCss() { insertLink('url', 'all') }
if (window.addEventListener) {window.addEventListener(
  'DOMContentLoaded', dCss, false)} else { window.onload=dCss

-1

Source: css-tricks.com

Similar codes

0 vote288 views1 answer
Liste commandes disponibles linux
CSS
3 votes267 views1 answer
Css sass compile run
CSS
0 vote269 views1 answer
Css Specify that the background image should be shown once, in the top right corner
CSS
0 vote287 views2 answers
How to center the table horizontally css
CSS
35 votes248 views2 answers
How to blur background color in css
CSS
0 vote266 views1 answer
Overflow-wrap: anywhere
CSS
0 vote311 views1 answer
Change size material checkbox
CSS
15 votes283 views3 answers
Image rotate with css
CSS
-1 vote275 views1 answer
Css code for green
CSS
0 vote275 views1 answer
All the divs from inside of another div css
CSS