How to align the div and iframe in the center?
663
How to horizontally center an element
158168
How to align input forms in HTML
146569
How do you easily horizontally center a  using CSS?
60375
Full-screen iframe with a height of 100%
5984
How to center an element horizontally and vertically
28635
How can I align two divs horizontally?
13437
How to vertically align elements in a div?
17807
How to access child iframe elements from a parent javascript page?
217
How can I vertically center a "div" element for all browsers using CSS?
37620
How to align checkboxes and their labels consistently cross-browsers
133578
vertical align center image in fixed size div
51163
How to vertically center  inside the parent element with CSS?
35201
Adjust width and height of iframe to fit with content in it
4258
Center parent div with float children
130947
Center  and Display on Same Line
68547
How can I center text (horizontally and vertically) inside a div block?
69321
Making an iframe responsive