body {
    background-color:#000;
    color:#ff0;
    margin:0;
    font-family:"Open Sans", Verdana, sans-serif;
    overflow:hidden;
}
a {
    color:orange;
    text-decoration:none;
}
strong {
    color:#ff0;
}
h2 {
    color:#ff9;
    margin-bottom:2px;
}
#about_button {
    position:absolute;
    left:16px;
    top:16px;
    overflow:hidden;
}
#close_button {
    position:absolute;
    right:8px;
    bottom:8px;
    overflow:hidden;
}
#about_box_bkg {
    width:100%;
    height:100%;
    position:absolute;
    left:0;
    top:0;
    overflow:hidden;
    z-index:40;
    background-color:rgba(100,100,100,0.7);
    pointer-events:none;
}
#about_box {
    width:800px;
    height:600px;
    position:absolute;
    left:50%;
    top:50%;
    margin-left:-400px;
    margin-top:-300px;
    overflow:hidden;
    padding:8px;
    color:#fff;
    text-align:justify;
    z-index:100;
    background-color:rgba(100,100,100,0.9);
    border-radius:10px;
    font-size:1.0em;
    border:black 2px solid;
    pointer-events:none;
}
#title {
    font-size:2.0em;
    position:absolute;
    left:80px;
    top:16px;
    width:380px;
    height:40px;
    overflow:hidden;
    padding:8px;
    padding-top:4px;
    color:#ff9;
    background-color:rgba(100,100,100,0.6);
    border-radius:10px
}
#tracker_map {
    width:256px ;
    background-color:rgba(100,100,100,0.8);
    bottom:8px;
    right:8px;
    height:256px;
    position:absolute;
    padding:12px;
    padding-top:4px;
    z-index:10;
    color:yellow;
    font-size:0.75em;
    border-radius:10px;
    border:2px black solid;
}
#tracker_marker {
    width:32px ;
    background:url(../img/tracker_arrow.png);
    background-size:32px 32px;
    background-repeat:no-repeat;
    bottom:132px;
    right:134px;
    height:32px;
    position:absolute;
    padding:0px;
    z-index:20;
    color:yellow;
    font-family:Verdana, Arial;
    font-size:0.75em;
}
#pano_container {
    position:absolute;
    left:8px;
    top:348px;
    width:832px;
    height:416px;
    z-index:20;
    display:block;
    pointer-events:none;
    border:2px black solid;
}
#depth_container {
    position:absolute;
    left:8px;
    top:80px;
    width:512px;
    height:256px;
    z-index:10;
    display:block;
    pointer-events:none;
    border:2px black solid;
}
#input_ctrl {
    position:absolute;
    left:16px;
    bottom:16px;
    width:300px;
    height:32px;
    z-index:10;
    padding-left:8px;
    border-radius:10px;
    font-size:1.0em;
    outline:none;
}
#input_feedback {
    position:absolute;
    left:16px;
    bottom:56px;
    width:200px;
    height:24px;
    z-index:10;
    padding-left:16px;
    padding-top:4px;
    border-radius:10px;
    font-size:1.0em;
    border:2px solid black;
    color:#f66;
}
.hide {
    opacity:0;
    transition:opacity .5s ease-out;
}
.show {
    opacity:1;
    transition:opacity .5s ease-out;
}