Try this
<header>
<div style="top: 0px; padding: 5px; background-color: black;">
<div style="text-align:center;margin-left:auto;margin-right:auto;">
<div style="float:left; width:80%">
<img src="Content/Images/JPL_Logo.PNG" height="100px" width="100px" />
</div>
<div style="color:#FFFF33;height:30px;float:right;">
Company 1 | Welcome admin | <a href="~/Login/Create" style="color:yellow !important;">Logout</a>
</div>
</div>
<div class="cleardiv"></div>
</div>
</header>