<!DOCTYPE HTML> <html> <style> html { writing-mode: vertical-rl; } </style> <body> <p>The following image should have uniform padding around all sides.</p> <div style="width: 150px; float: left; background: yellow; padding: 5px;"> <div style="width: 100%"> <!-- 32x32 blue image --> <img style="width: 100%" src="data:image/png; charset=binary;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAIAAAD8GO2jAAAAAXNSR0IArs4c6QAAAChJREFUSMftzUEBAAAEBLCjf2dK8NsKrJLJp84zgUAgEAgEAoFAcGUBocYBP+pqhN4AAAAASUVORK5CYII="> </div> </div> <p style="clear:left">Note that if you zoom the page after it loads it fixes the problem by causing a reflow.</p>