I've noticed a significant difference in rending of Open Sans (Google Web Font) from Chrome, to Safari/Firefox. I attach two photos, the first being chrome and the second safari.
All I have in the stylesheet is:
font-family: 'Open Sans', sans-serif;
font-size:14px;
Hope you can help, as I really like the chrome (first image) rendering but HATE the other one!!
Add to head
<link href='http://fonts.googleapis.com/css?family=Open+Sans:400,600,300' rel='stylesheet' type='text/css'>
CSS rule
.btn{
font-family: 'Open Sans', sans-serif;
font-weight:300;
text-rendering: optimizeLegibility;
font-size: .9em;
}