.contw{
    position: relative;
    overflow: hidden;
    /*
    background-image: url('img/login_bg.jpg');
    background-size: cover;
    background-position: top center;
    */
    text-shadow: -1px 0 black, 0 1px black, 1px 0 black, 0 -1px black;
}


.airp{
    display: block;
    width: 10px;
    height: 10px;
    position: absolute;
    top: 300px;
    left: 50%;
    z-index: -1;
    transform: rotate(22deg) scale(100%);
    animation: airp 15s ease forwards;
    
}
@keyframes airp {
    0% { top: 350px;left:-300px; transform: scale(130%) rotate(22deg);}
    30% { top:200px; left:210px; transform: scale(96%) rotate(23deg);}
    50% { top:220px; left:190px; transform: scale(115%) rotate(21deg);}
    70% { top:190px; left:200px; }
    100% { top:200px; left:170px; transform: scale(100%) rotate(22deg);}
}
.airp_u{
    display: block;
    width: 300px;
    height: 300px;
    position: absolute;
    top: 0px;
    left: 0px;
    transform: rotate(-45deg);
    background-image: url('img/ui_a10.png');
    background-size: contain;
    filter: blur(1px);
}
.airp_t{
    display: block;
    width: 500px;
    height: 60px;
    position: absolute;
    top: 340px;
    left: -320px;
    transform: rotate(-45deg);
    background-image: url('img/ui_smoketail.png');
    background-position: 0px 0px;
    background-size: 500px 60px;
    
    animation: airp_t 20s ease forwards;
    
}
@keyframes airp_t {
    0% { background-position: 0px 0px; }
    100% { background-position: -500px 0px; }
}

.loginbutton{
    display: inline-block;
    background: #F03C2D;
    font-size: 0.9em;
    line-height: 0.9em;
    color: white;
    text-align: center;
    vertical-align: middle;
    padding: 15px 25px 15px 25px;
    border: 1px solid #BA0513;
    border-bottom: 3px solid #BA0513;
    border-radius: 2px;
    box-shadow: 0px 4px 30px -12px black;
    text-shadow: -1px 0 black, 0 1px black, 1px 0 black, 0 -1px black;
    
}