Horizontally and vertically align element within 2 elements while maintaining 2:1 width to height ratio
217
How can I vertically center a "div" element for all browsers using CSS?
33889
How do I vertically center text with CSS?
50269
Align  elements side by side
111245
Beamer: Vertically stretching level-1 list items in a nested list environment
84038
Why is vertical-align: middle not working on my span or div?
32109
Why aren't these elements with display:inline-block properly aligned?
25554
Scale a div to fit in window but preserve aspect ratio
135463
vertical alignment of two columns in a beamer frame
55086
Vertical Align an element in CSS
26107
How do I align spans or divs horizontally?
51163
How to vertically center  inside the parent element with CSS?
68547
How can I center text (horizontally and vertically) inside a div block?
146569
How do you easily horizontally center a  using CSS?
120512
How do I vertically center a single cell within a table?
140755
Automatic vertical alignment of a single float on a dedicated page
103256
Align multiple images (with captions) to baseline, all different heights
150578
Full-height CSS layout, with multiple columns