Editing CSS (section)

==Größen==
Mit font-size im body-Tag legt man fest, wie groß 1 em ist.

===Resolution===
The CSS resolution is different from the real device screen resolution. The '''CSS resolution''' is used for measurements in the CSS Rules, and the Screen Device Resolution is the actual number of pixels on the screen. The Density Display defines the ratio between the Screen Resolution and the CSS Resolution and is different in high-density screens. An example is Samsung Galaxy S10 Resolutions:
* Device Resolution — 1440px by 3040px
* CSS Resolution — 360px by 760px
* Density Display — 4x (4 times for every pixel)
A complete list can be found [https://yesviz.com/ on yesviz]. 

The '''Viewport''' is the area/window which is currently visible w/o scrollbar in CSS-Pixel.