body,html {
    margin: 0;
    padding: 0;
    background: #fff;
}

#radar {
    margin-bottom: 50px;
}

.container {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    text-align: center;
    background: #fff;
}
.container:before {
    content: "";
    height: 100%;
    display: inline-block;
    vertical-align: middle;
}

.container .spinner-frame {
    display: inline-block;
    vertical-align: middle;
    width: 35px;
    height: 35px;
    border-radius: 50%;
    position: relative;
    overflow: hidden;
    border: 5px solid #ddd;
    padding: 10px;
}

.container .spinner-frame .spinner-cover {
    background: #fff;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    position: relative;
    z-index: 2;
}

.container .spinner-frame .spinner-bar {
    background: #29d;
    width: 50%;
    height: 50%;
    position: absolute;
    top: 0;
    left: 0;
    border-radius: 100% 0 0 0;
    -webkit-animation: spinny 1s linear infinite;
    transform-origin: 100% 100%;
}
@-webkit-keyframes spinny {
    0% {
        transform: rotate(0deg);
        background: #1EC0A3;
    }
    50% {
        transform: rotate(180deg);
        background: #3F53C7;
    }
    100% {
        transform: rotate(360deg);
        background: #FF0021;
    }
}