safari - Open Sans Google Web Fonts Rendering in Chrome

Question

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!!

Answer 1

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;
}