css - Full-screen responsive background image -


i new front-end development , foundation.

i trying <div class="main-header"> full screen image scales down responsively.

can tell me doing wrong? scaling properly, not showing full image. wanted <div class="large-6 large-offset-6 columns"> sit above on mobile device – possible?

the html: 

<!-- main header --> <div class="main-header">    <div class="row">      <div class="large-6 large-offset-6 columns">        <h1 class="logo">bleepbleeps</h1>        <h3>a family of little friends<br>that make parenting easier</h3>      </div> <!-- end large-6 large-offset-6 columns -->    </div><!-- end row --> </div><!-- end main-header -->

the css:

.main-header {     background-image: url(../img/bb-background2.png);     background-repeat: no-repeat;     background-position: center;     background-size: cover;     width: 100%;     height: 100%; }  h1.logo {     text-indent: -9999px;     height:115px;     margin-top: 10%; }

http://css-tricks.com/perfect-full-page-background-image/

//html <img src="images/bg.jpg" id="bg" alt="">  //css #bg {   position: fixed;    top: 0;    left: 0;     /* preserve aspet ratio */   min-width: 100%;   min-height: 100%; }

or

img.bg {   /* set rules fill background */   min-height: 100%;   min-width: 1024px;    /* set proportionate scaling */   width: 100%;   height: auto;    /* set positioning */   position: fixed;   top: 0;   left: 0; }  @media screen , (max-width: 1024px) { /* specific particular image */   img.bg {     left: 50%;     margin-left: -512px;   /* 50% */   } }

or

//html <img src="images/bg.jpg" id="bg" alt="">  //css #bg { position: fixed; top: 0; left: 0; } .bgwidth { width: 100%; } .bgheight { height: 100%; }  //jquery $(window).load(function() {              var thewindow        = $(window),             $bg              = $("#bg"),             aspectratio      = $bg.width() / $bg.height();          function resizebg() {                  if ( (thewindow.width() / thewindow.height()) < aspectratio ) {                     $bg                         .removeclass()                         .addclass('bgheight');                 } else {                     $bg                         .removeclass()                         .addclass('bgwidth');                 }          }          thewindow.resize(resizebg).trigger("resize");  });

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