Dead centering (vertically and horizontally) css-only tabs
3627
Best way to center a  on a page vertically and horizontally?
100837
Vertically centered horizontal rule filling the rest of a line?
133578
vertical align center image in fixed size div
26893
Why shouldn't I mix tabs and spaces?
17183
Disable browsers vertical and horizontal scrollbars
124830
How do I create a circle or square with just CSS - with a hollow center?
13437
How to vertically align elements in a div?
104963
How to center an element in the middle of the browser window?
145297
Vertical Tab Bars?
128182
Why does display: -ms-flex; -ms-justify-content: center; not work in IE10?
152218
How to horizontally center an unordered list of unknown width?
140762
CSS way to horizontally align table
96540
CSS 100% height with padding/margin
15582
Vertically center cells of a table?
130907
CSS horizontal centering of a fixed div?
86804
Align text in exact center (vertically and horizontally) without creating outlines?
140755
Automatic vertical alignment of a single float on a dedicated page