Erik Torsner eriktorsner
eriktorsner
/ critcss.snippet.js
Last active
November 11, 2016 11:02
— forked from james-Ballyhoo/critcss.snippet.js
Based off of https://gist.github.com/PaulKinlan/6284142 , but with support for media queries and dumps css to a textarea in a panel stuck to the top of the page. Only tested in Chrome, uses height of window to determine "critical path".
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| (function(){ | |
| if(document.querySelector("#_CRIT_CSS")){return;} | |
| var container = document.createElement("div"); | |
| container.id = "_CRIT_CSS"; | |
| container.innerHTML = '<textarea cols=80 rows=20></textarea><button id="CRIT_FIND">Find Critical CSS</button><button id="CRIT_CLOSE">Exit</button>'; | |
| container.style.position = "fixed"; | |
| container.style.top = 0; | |
| container.style.left = 0; | |
| container.style.right = 0; | |
| container.style.backgroundColor = "#FFF"; |