<!DOCTYPE html> | |
<html> | |
<head> | |
<meta charset=utf-8> | |
<title>valid width and height</title> | |
</head> | |
<body> | |
<img src="url" width="0" height="0" alt="bar"><!-- img with 0 value for width and height --> | |
<img src="url" width="10" height="10" alt="bar"><!-- img with positive values for width and height --> | |
</body> | |
</html> |