div.loader{

    width:100px;
    height:100px;
    border-radius:100%;
    position:absolute;
    border: 2px solid #E49A11;
    animation: up 1s;
    animation-iteration-count: infinite;
    transition:2s;
    border-bottom:none;
    border-right:none;
    animation-timing-function:linear;
    margin-left: -70px;
    margin-top: -70px;
    left:50%;
    top:50%;

}

@keyframes up{
    from{transform:rotate(0deg); }
    50%{transform:rotate(180deg);}
    100%{transform:rotate(360deg);}
}
#img2{
    width:90px;
    height:90px;
    left:50.35%;
    top:50.7%;
    animation-delay:.2s;

}
#img3{
    width:80px;
    height:80px;
    left:50.70%;
    top:51.4%;
    animation-delay:.4s;
}
#img4{
    width:70px;
    height:70px;
    left:51.05%;
    top:52.1%;
    animation-delay:.6s;

}
#img5{
    width:60px;
    height:60px;
    left:51.40%;
    top:52.8%;
    animation-delay:.8s;

}