After installing the theme you can change the logo by going to “Appearance-Theme Options-General”. You will find the option “Logo” and “retina logo“ for mobile devices (make the logo twice as big for retina)
There is also an option to left-aligne the logo “Appearance-Theme Options-General”
How to tweak the logo position code
If you need to modify the site’s logo position you would have to modify this css line that’s on styles.css at line 33. You could modify it there, or by adding the css rule to the CSS section of the theme options. This section code overrides any theme default code.
margin: 0 auto;
padding: 50px 0 25px !important;