html,
body {
    margin: 0;
    overflow: hidden;
}

#arElem {
    position: absolute;
    width: 200px;
    height: 285px;
    display: none;
    border: 1px solid black;
    background: white;
}

#loading {
    visibility: hidden;
    left: 50%;
    width: 200px;
    margin-left: -100px;
    background-color: #eee;
    text-align: center;
    border-radius: 10px;
    padding: 10px;
    position: fixed;
    z-index: 9999;
    bottom: 20px;
    font-size: 15px;
    word-wrap: break-word;
}

#loading.show {
    visibility: visible;
    -webkit-animation: fadein 1.0s;
    animation: fadein 1.0s;
}

#loading.hide {
    -webkit-animation: fadeout 1.0s;
    animation: fadeout 1.0s;
}

@-webkit-keyframes fadein {
    from {bottom: 0; opacity: 0;}
    to {bottom: 30px; opacity: 1;}
}

@keyframes fadein {
    from {bottom: 0; opacity: 0;}
    to {bottom: 30px; opacity: 1;}
}

@-webkit-keyframes fadeout {
    from {bottom: 30px; opacity: 1;}
    to {bottom: 0; opacity: 0; visibility: hidden;}
}

@keyframes fadeout {
    from {bottom: 30px; opacity: 1;}
    to {bottom: 0; opacity: 0; visibility: hidden;}