What about SourceTree?

I think that the fact that OSX is developed over Unix is the answer.

Tested new account. I won't use it. I'm still going to use bitbucket.org. For my day to day dev is enough.

I think this can't be better explained: css font sizing by @ireaderinokun Summing up: html { font-size: 62.5%; /* sets the base font to 10px for easier math */ } body { font-size: 16px; font-size: 1.6rem; /* sets the default sizing to make sure nothing is actually 10px */ } h1 { font-size: 32px; font-size: 3.2rem; } Then use media queries: @media screen and (min-width: 1280px) { html { font-size: 100%; } }