<div class="col-md-1 testdiv grey-background"></div>
.testdiv {
border: 1px solid blue;
}
<div class="container-fluid">
<div class="row">
<!--PARENT DIV ELEMENT-->
<div class="col-md-1 grey-background"></div>
<div class="col-md-10 black-background">
<h1 class="text-center heading-text">- N A M E-</h1>
<!-- BUTTONS-->
<div class="row">
<div class="col-md-4">
<h2 class="text-center">ABOUT</h2>
</div>
<div class="col-md-4">
<h2 class="text-center">PORTFOLIO</h2>
</div>
<div class="col-md-4">
<h2 class="text-center">CONTACT</h2>
</div>
</div>
</div>
<!-- FOR col-md-10 DIV ELEMENT-->
<div class="col-md-1 grey-background"></div>
</div>
<!--PARENT DIV ELEMENT CLOSING TAG-->
</div>
<!-- FOR CONTAINER FLUID DIV ELEMENT-->
:cookie: 304 | @ashishpatelcs |http://www.freecodecamp.com/ashishpatelcs
<div class="container-fluid">
<div class="row"> <!--PARENT DIV ELEMENT-->
<div class="col-md-1 grey-background">
</div>
<div class="col-md-10 black-background">
<h1 class="text-center">- N A M E-</h1>
<!-- BUTTONS-->
<div class="row">
<div class="col-md-4">
<h2 class="text-center">ABOUT</h2>
</div>
<div class="col-md-4">
<h2 class="text-center">PORTFOLIO</h2>
</div>
<div class="col-md-4">
<h2 class="text-center">CONTACT</h2>
</div>
</div> <!-- FOR col-md-10 DIV ELEMENT-->
<div class="col-md-1 grey-background">
</div>
</div><!--PARENT DIV ELEMENT CLOSING TAG-->
</div> <!-- FOR CONTAINER FLUID DIV ELEMENT-->