example ESRI dynamicmaplayer
example ESRI leaflet
No-Library (pure JS), HTML, CSS, JavaScript
No-Library (pure JS), HTML, SCSS, JavaScript
from the Github API
jQuery (edge), HTML, CSS, JavaScript
The CSS box-sizing property allows to take into account padding and border when calculating width and height of an element.
From https://stackoverflow.com/a/36717369/2314737 ("Best way to center a <div> on a page vertically and horizontally?")
FabricJS 1.7.20, HTML, CSS, JavaScript