Bootstrap Background Image

HTML

<script src="https://netdna.bootstrapcdn.com/bootstrap/3.0.0/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="https://netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap.min.css">
<body>
  <div class="body-content">
      <div class="container">
        <div class="row">
            <div class="col-md-12">
              <div class="row">
                <div class="col-md-12">
                  <label>Content</label>
                </div>
              </div>           
              <div class="row">
                <div class="col-md-12">
                  <label>Content</label>
                </div>
              </div>            
              <div class="row">
                <div class="col-md-12">
                  <label>Content</label>
                </div>
              </div>           
              <div class="row">
                <div class="col-md-12">
                  <label>Content</label>
                </div>
              </div>     
              <div class="row">
                <div class="col-md-12">
                  <label>Content</label>
                </div>
              </div>     
              <div class="row">
                <div class="col-md-12">
                  <label>Content</label>
                </div>
              </div>     
              <div class="row">
                <div class="col-md-12">
                  <label>Content</label>
                </div>
              </div>     
              <div class="row">
                <div class="col-md-12">
                  <label>Content</label>
                </div>
              </div>     
              <div class="row">
                <div class="col-md-12">
                  <label>Content</label>
                </div>
              </div>     
              <div class="row">
                <div class="col-md-12">
                  <label>Content</label>
                </div>
              </div>     
              <div class="row">
     ...

CSS

/* Latest compiled and minified CSS included as External Resource*/

/* Optional theme */
@import url('//netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap-theme.min.css');

.body-content
{
  background-image: url(https://previews.123rf.com/images/olivierl/olivierl1109/olivierl110900122/10487900-chemistry-laboratory-equipment-background-of-glass-test-tubes-and-petri-dishes-with-syringes-and-ass.jpg);
  background-repeat: no-repeat;
  background-attachment: fixed;
  overflow-y:auto 

}
.container{
  border: blue 1px solid;
  
}