not responsive:
responsive:
demo:
In em's please!
Schwierigkeiten:
-> polyfill picturefill by Scott Jehl
Srcset & Sizes Erklärt
"In many ways, every time we use a pixel value in CSS
we’re rasterizing what was a fully-scalable web"
Trent Walton
hinzufügen statt wegnehmen
<meta name="viewport" content="width=device-width, initial-scale=1">
if (window.matchMedia('(min-width: 45em)').matches) {
// do something...
}