This is the CSS for the logo placement in the demo:
.t3-mainnav .navbar .nav > .nav-home > a {
background-color: #0067A2
background-image: url("/templates/t3_blank/images/logo.png");
background-position: center top;
background-repeat: no-repeat;
box-shadow: none;
padding-left: 15px;
padding-right: 15px;
text-indent: -1000em;
width: 60px;
}
What you can do is create a “custom.css” file – within your main CSS directory – enter the above CSS rule and play around with the properties until you arrive at the result you’re most happy with. It’s largely an effort in trial-and-error.