.loader {
    position: fixed;
    top: 50%;
    left: 50%;
    -webkit-transform: translate(-50%, -50%);
    -moz-transform: translate(-50%, -50%);
    -mos-transform: translate(-50%, -50%);
    -o-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
    text-align: center;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    cursor: default;
}
.text{
    position: absolute;
    left: -2.5em;
    top: -0.75em;
    -webkit-animation: text 2s infinite;
    -moz-animation: text 2s infinite;
    -moz-animation: text 2s infinite;
    -ms-animation: text 2s infinite;
    -o-animation: text 2s infinite;
    animation: text 2s infinite;
}
.vertical{
    position: absolute;
    top: -1.84em;
    left: -0.4em;
    -webkit-transform: rotate(90deg);
    -moz-transform: rotate(90deg);
    -ms-transform: rotate(90deg);
    -o-transform: rotate(90deg);
    transform: rotate(90deg);
}
.horizontal{
    position: absolute;
    top: 0em;
    left: 0em;
    -webkit-transform: rotate(0deg);
    -moz-transform: rotate(0deg);
    -ms-transform: rotate(0deg);
    -o-transform: rotate(0deg);
    transform: rotate(0deg);
}
.circlesup{
    position: absolute;
    top: -4.7em;
    right: 12.1em;
}
.circlesdwn{
    position: absolute;
    top: 2.5em;
    right: -13.5em;
    -webkit-transform: rotate(180deg);
    -moz-transform: rotate(180deg);
    -ms-transform: rotate(180deg);
    -o-transform: rotate(180deg);
    transform: rotate(180deg);
}
.circle {
    position: absolute;
    width: 15em;
    height: 15em;
    -webkit-transform: rotate(45deg);
    -moz-transform: rotate(45deg);
    -ms-transform: rotate(45deg);
    -o-transform: rotate(45deg);
    transform: rotate(45deg);
    -webkit-animation: orbit 2s infinite;
    -moz-animation: orbit 2s infinite;
    -moz-animation: orbit 2s infinite;
    -ms-animation: orbit 2s infinite;
    -o-animation: orbit 2s infinite;
    animation: orbit 2s infinite;
    z-index: 5;
}
.circle:after {
    content: '';
    position: absolute;
    width: 2em;
    height: 2em;
    -webkit-border-radius: 100%;
    -moz-border-radius: 100%;
    -ms-border-radius: 100%;
    -o-border-radius: 100%;
    border-radius: 100%;
    background: #13A3A5;
}
/* 从这起下面是无效的. */
.circle:nth-child(2) {
    -webkit-animation-delay: 100ms; 
    -moz-animation-delay: 100ms; 
    -ms-animation-delay: 100ms; 
    -o-animation-delay: 100ms; 
    animation-delay: 100ms;
    z-index:4;
}
.circle:nth-child(2):after  {
    background: #56bebf; 
    -webkit-transform: scale(0.8,0.8);
    -moz-transform: scale(0.8,0.8);
    -ms-transform: scale(0.8,0.8);
    -o-transform: scale(0.8,0.8);
    transform: scale(0.8,0.8);
}
/* 从这起是有效的 */
.circle:nth-child(3) {
    -webkit-animation-delay: 225ms; 
    -moz-animation-delay: 225ms; 
    -ms-animation-delay: 225ms; 
    -o-animation-delay: 225ms; 
    animation-delay: 225ms; 
    z-index:3;
}
.circle:nth-child(3):after {
    background: #ffa489; 
    -webkit-transform: scale(0.6,0.6);
    -moz-transform: scale(0.6,0.6);
    -ms-transform: scale(0.6,0.6);
    -o-transform: scale(0.6,0.6);
    transform: scale(0.6,0.6);
}
.circle:nth-child(4) {
    -webkit-animation-delay: 350ms; 
    -moz-animation-delay: 350ms; 
    -ms-animation-delay: 350ms; 
    -o-animation-delay: 350ms; 
    animation-delay: 350ms; 
    z-index: 2;
}
.circle:nth-child(4):after  {
    background: #ff6d37;
    -webkit-transform: scale(0.4,0.4);
    -moz-transform: scale(0.4,0.4);
    -ms-transform: scale(0.4,0.4);
    -o-transform: scale(0.4,0.4);
    transform: scale(0.4,0.4);
}
.circle:nth-child(5) {
    -webkit-animation-delay: 475ms; 
    -moz-animation-delay: 475ms; 
    -ms-animation-delay: 475ms; 
    -o-animation-delay: 475ms; 
    animation-delay: 475ms; 
    z-index: 1;
}
.circle:nth-child(5):after  {
    background: #DB2F00;
    -webkit-transform: scale(0.2,0.2);
    -moz-transform: scale(0.2,0.2);
    -ms-transform: scale(0.2,0.2);
    -o-transform: scale(0.2,0.2);
    transform: scale(0.2,0.2);
}
@keyframes orbit { 
    0% { transform:rotate(45deg); } 

    5% { transform:rotate(45deg); animation-timing-function: ease-out; } 

    70% { transform:rotate(405deg); animation-timing-function: ease-in; }

    100% { transform:rotate(405deg); }
}
@keyframes text {
    0% { transform:scale(0.2,0.2); animation-timing-function: ease-out; }

    50% { transform:scale(1,1); animation-timing-function: ease-out; }

    60% { transform:scale(1,1); animation-timing-function: ease-out; }

    100% { transform:scale(0.2,0.2); }
}