填充在DIV容器HTML/CSS

我正尝试让下面的图片，以适应整个DIV，这意味着背景图片应采取的整个空间，我不应该看到绿色。不幸的是，我找不到一种方法来做到这一点。填充在DIV容器HTML/CSS

#imagecontainer { 
 
    background: url("http://3.bp.blogspot.com/_EqZzf-l7OCg/TNmdtcyGBZI/AAAAAAAAAD8/KD5Y23c24go/s1600/homer-simpson-1280x1024.jpg") no-repeat; 
 
    border: 1px solid; 
 
    background-size: cover; 
 
}

<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"/> 
 

 

 
<div class="container no-padding" id="maincontent" tabindex="-1"> 
 
    <div id="imagecontainer" class="row"> 
 
    <div class="col-lg-12"> 
 
     <img class="img-responsive" src="img/profile.png" alt=""> 
 
     <div class="intro-text"> 
 
     <h1 class="name">Start Bootstrap</h1> 
 
     <h1 class="name">Start Bootstrap</h1> 
 
     <h1 class="name">Start Bootstrap</h1> 
 
     <hr class="star-light"> 
 
     <span class="skills">Web Developer - Graphic Artist - User Experience Designer</span> 
 
     </div> 
 
    </div> 
 
    </div> 
 
</div>