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 vote170 views1 answer
Look and Feel
CSS
0 vote148 views1 answer
Css ovel
CSS
6 votes173 views6 answers
Word break css
CSS
0 vote159 views1 answer
Have unordered list horizontal css
CSS
21 votes140 views2 answers
Ul css in one line
CSS
1 vote143 views1 answer
There's a gap between my td
CSS
0 vote132 views1 answer
CSS blue bottom right Box shadow
CSS
1 vote175 views1 answer
Css fixed center vertical
CSS
0 vote147 views2 answers
Dont break word css
CSS
0 vote137 views2 answers
Css prevent scrolling behind overlay
CSS