title: How to make background image blur and not the content?
body: <p>I've tried to implement the blur attribute to the image but it just blurs the body. I'm not sure how to make display it right. Thanks!
  Here is the website.</p>
  
  <p><a href="http://79.170.44.80/sicuandomain.com/" rel="nofollow">http://79.170.44.80/sicuandomain.com/</a></p>
  
  <p>Here is the html, and style, php code</p>
  
  <pre><code>&lt;?php
    $bg = array('Abstract.jpg', 'Antelope.jpg', 'Bahamas.jpg', 'Beach.jpg' ); // array of filenames
  
    $i = rand(0, count($bg)-1); 
    $selectedBg = "$bg[$i]"; // set variable equal to which random filename was chosen
  ?&gt;
  &lt;!DOCTYPE html&gt;
  &lt;html&gt;
  &lt;head&gt;
      &lt;title&gt;My Contact Form&lt;/title&gt;
      &lt;link rel="stylesheet" href="css/bootstrap.min.css" type="text/css"&gt;
      &lt;link rel="stylesheet" href="css/font-awesome.min.css" type="text/css"&gt;
      &lt;link rel="stylesheet" type="text/css" href="css/style.css"&gt;
  
      &lt;style type="text/css"&gt;
  body{
      content:"";
      background: url(images/&lt;?php echo $selectedBg; ?&gt;) no-repeat;
      background-size: cover;
      z-index: -999;
      -webkit-filter: blur(5px);
      -moz-filter: blur(5px);
      -o-filter: blur(5px);
      -ms-filter: blur(5px);
      filter: blur(5px);
  }
  &lt;/style&gt;
  &lt;/head&gt;
  &lt;body&gt;
      &lt;div class="container"&gt;
          &lt;div class="row"&gt;
              &lt;div class="col-lg-6"&gt;
                  &lt;form id="form" action="welcome.php" class="form-horizontal" method="POST"&gt;
                      &lt;h1 class=""&gt;My Contact Form&lt;/h1&gt;
  
                      &lt;div class="form-group"&gt;
                          &lt;div class="col-lg-4"&gt;
                              &lt;input type="text" placeholder="First Name" name="fname" class="form-control" pattern="[A-Z][a-zA-Z]*"required/&gt;
                          &lt;/div&gt;
                          &lt;div class="col-lg-4"&gt;
                              &lt;input type="text" placeholder="Last Name" name="lname" class="form-control" required/&gt;
                          &lt;/div&gt;
                      &lt;/div&gt;
  
  
                      &lt;div class="form-group"&gt;
                          &lt;div class="col-lg-8"&gt;
                              &lt;input type="email" placeholder="Email Address" name="email" class="form-control" required/&gt;
                          &lt;/div&gt;
                      &lt;/div&gt;
  
                      &lt;div class="form-group"&gt;
                          &lt;div class="col-lg-8"&gt;
                              &lt;input type="text" placeholder="Mobile" name="mobile" class="form-control" required/&gt;
                          &lt;/div&gt;
                      &lt;/div&gt;
  
                      &lt;div class="form-group"&gt;
                          &lt;div class="col-lg-8"&gt;
                              &lt;select name="gender" class="form-control" required&gt;
                                  &lt;option value=""&gt;Select one&lt;/option&gt;
                                  &lt;option value="Male"&gt;Male&lt;/option&gt;
                                  &lt;option value="Female"&gt;Female&lt;/option&gt;
                                  &lt;option value="Others"&gt;I'm not sure&lt;/option&gt;
                              &lt;/select&gt;
                          &lt;/div&gt;
                      &lt;/div&gt;
  
                      &lt;div class="form-group"&gt;
                          &lt;div class&gt;
                      &lt;/div&gt;
  
                      &lt;div class="form group"&gt;
                          &lt;div class="col-lg-offset-2 col-lg-6"&gt;
                              &lt;button type="submit" class="btn btn-success pull-right"&gt;
                                  &lt;i class="fa fa-plus"&gt;&lt;/i&gt; Add
                              &lt;/button&gt;
                          &lt;/div&gt; 
                      &lt;/div&gt;
                  &lt;/form&gt;
              &lt;/div&gt;
  
          &lt;/div&gt;
      &lt;/div&gt;
      &lt;script src="js/bootstrap.min.js" type="text/javascript"&gt;&lt;/script&gt;
      &lt;script src="js/jquery-1.11.3.min.js.css" type="text/javascript"&gt;&lt;/script&gt;
  &lt;/body&gt;
  &lt;/html&gt;
  </code></pre>