Increase Logo Size in WP Pro Real Estate 6

You have a lot of options, some of which are:

1. Keep the menu aligned:

Go to Real Estate 6 -> Create a Skin -> Custom CSS and put this code there:

#masthead .logo {
max-width: 200%;
width: 200%;

You may change the values.

2. Set logo full width:

Use this CSS

#masthead .col.span_3 {
width: 100%;

Of course you may mix these two options and change the values.