Loading overlay with spinner

loading.html

<style>
    #overlay {
        background: #000;
        color: #fff;
        position: fixed;
        height: 100%;
        width: 100%;
        z-index: 5000;
        top: 0;
        left: 0;
        float: left;
        text-align: center;
        padding-top: 25%;
        opacity: .80;
    }
    .spinner {
        margin: 0 auto;
        height: 64px;
        width: 64px;
        animation: rotate 0.8s infinite linear;
        border: 5px solid #b5985a;
        border-right-color: transparent;
        border-radius: 50%;
    }
    @keyframes rotate {
        0% {
            transform: rotate(0deg);
        }
        100% {
            transform: rotate(360deg);
        }
    }
}
</style>

<script>
  $(document).ready(function() {
    $('#overlay').fadeIn().delay(2000).fadeOut();
  });
</script>

<div id="overlay">
    <div class="spinner"></div>
    <br/>
    One moment please...
</div>