better preloader

preloader css

#loader {
    background: none repeat scroll 0 0 #ffffff;
    bottom: 0;
    height: 100%;
    left: 0;
    position: fixed;
    right: 0;
    top: 0;
    width: 100%;
    z-index: 9999;
}
#loaderInner {
    height: 80px;
    width: 80px;
    margin-top: -40px;
    margin-left: -40px;
    left: 50%;
    top: 50%;
    position: absolute;
}

.spinner {
  width: 100%;
  height: 100%;
  position: relative;
  margin: 0 auto;
}


<div id="loader">
    <div id="loaderInner">
        <div class="spinner">
              <div class="double-bounce1"></div>
              <div class="double-bounce2"></div>
        </div>
    </div>
</div>  

$(window).load(function() { 
    $("#loaderInner").fadeOut(); 
    $("#loader").delay(400).fadeOut("slow"); 
});