Why is it that even though my website CSS is identical, the Lato font is rendered with a slightly heavier weight on Chrome (MacOSX) than on Safari on the same machine?
As you can see in this Answer: Font weight turns lighter on Mac/Safari
…use
-webkit-font-smoothing: subpixel-antialiased;
to make the font appear in Safari the same as in Chrome (thicker).
…or
-webkit-font-smoothing: antialiased;
to make the font appear in Chrome the same as in Safari (thinner).