<header class="main_header">
<div class="top_line">
<div class="container">
<div class="row">
<div class="col-md-2">
<div class="main_logo">
<p>Infusion</p>
</div>
</div>
<div class="col-md-10">
<div class="main_nav">
<ul>
<li><a href="#">design Folio</a></li>
<li><a href="#">Services</a></li>
<li><a href="#">our business</a></li>
<li><a href="#">how we help</a></li>
<li><a href="#">take the tour</a></li>
<li><a href="#">contact</a></li>
</ul>
</div>
</div>
</div>
</div>
</div>
</header>
в css пишу:
.main_logo {
background-color: #63c6ae;
height: 74px;
}