* {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}

section.wrapper {
    padding: 40px 0;
}

section.wrapper.dark {
    background: transparent;
    margin-top: calc(50vh - 142px);
}

div.spinner {
    -moz-animation: rotate 10s infinite linear;
    -webkit-animation: rotate 10s infinite linear;
    animation: rotate 10s infinite linear;
    position: relative;
    display: block;
    margin: auto;
    width: 142px;
    height: 142px;
}

div.spinner i {
    -moz-animation: rotate 3s infinite cubic-bezier(0.09, 0.6, 0.8, 0.03);
    -webkit-animation: rotate 3s infinite cubic-bezier(0.09, 0.6, 0.8, 0.03);
    animation: rotate 3s infinite cubic-bezier(0.09, 0.6, 0.8, 0.03);
    -moz-transform-origin: 50% 100% 0;
    -webkit-transform-origin: 50% 100% 0;
    transform-origin: 50% 100% 0;
    position: absolute;
    display: inline-block;
    top: 50%;
    left: 50%;
    border: solid 6px transparent;
    border-bottom: none;
}

div.spinner i:nth-child(1) {
    -moz-animation-timing-function: cubic-bezier(0.09, 0.3, 0.12, 0.03);
    -webkit-animation-timing-function: cubic-bezier(0.09, 0.3, 0.12, 0.03);
    animation-timing-function: cubic-bezier(0.09, 0.3, 0.12, 0.03);
    width: 44px;
    height: 22px;
    margin-top: -22px;
    margin-left: -22px;
    border-color: #2172b8;
    border-top-left-radius: 36px;
    border-top-right-radius: 36px;
}

div.spinner i:nth-child(2) {
    -moz-animation-timing-function: cubic-bezier(0.09, 0.6, 0.24, 0.03);
    -webkit-animation-timing-function: cubic-bezier(0.09, 0.6, 0.24, 0.03);
    animation-timing-function: cubic-bezier(0.09, 0.6, 0.24, 0.03);
    width: 58px;
    height: 29px;
    margin-top: -29px;
    margin-left: -29px;
    border-color: #18a39b;
    border-top-left-radius: 42px;
    border-top-right-radius: 42px;
}

div.spinner i:nth-child(3) {
    -moz-animation-timing-function: cubic-bezier(0.09, 0.9, 0.36, 0.03);
    -webkit-animation-timing-function: cubic-bezier(0.09, 0.9, 0.36, 0.03);
    animation-timing-function: cubic-bezier(0.09, 0.9, 0.36, 0.03);
    width: 72px;
    height: 36px;
    margin-top: -36px;
    margin-left: -36px;
    border-color: #82c545;
    border-top-left-radius: 48px;
    border-top-right-radius: 48px;
}

div.spinner i:nth-child(4) {
    -moz-animation-timing-function: cubic-bezier(0.09, 1.2, 0.48, 0.03);
    -webkit-animation-timing-function: cubic-bezier(0.09, 1.2, 0.48, 0.03);
    animation-timing-function: cubic-bezier(0.09, 1.2, 0.48, 0.03);
    width: 86px;
    height: 43px;
    margin-top: -43px;
    margin-left: -43px;
    border-color: #f8b739;
    border-top-left-radius: 54px;
    border-top-right-radius: 54px;
}

div.spinner i:nth-child(5) {
    -moz-animation-timing-function: cubic-bezier(0.09, 1.5, 0.6, 0.03);
    -webkit-animation-timing-function: cubic-bezier(0.09, 1.5, 0.6, 0.03);
    animation-timing-function: cubic-bezier(0.09, 1.5, 0.6, 0.03);
    width: 100px;
    height: 50px;
    margin-top: -50px;
    margin-left: -50px;
    border-color: #f06045;
    border-top-left-radius: 60px;
    border-top-right-radius: 60px;
}

div.spinner i:nth-child(6) {
    -moz-animation-timing-function: cubic-bezier(0.09, 1.8, 0.72, 0.03);
    -webkit-animation-timing-function: cubic-bezier(0.09, 1.8, 0.72, 0.03);
    animation-timing-function: cubic-bezier(0.09, 1.8, 0.72, 0.03);
    width: 114px;
    height: 57px;
    margin-top: -57px;
    margin-left: -57px;
    border-color: #ed2861;
    border-top-left-radius: 66px;
    border-top-right-radius: 66px;
}

div.spinner i:nth-child(7) {
    -moz-animation-timing-function: cubic-bezier(0.09, 2.1, 0.84, 0.03);
    -webkit-animation-timing-function: cubic-bezier(0.09, 2.1, 0.84, 0.03);
    animation-timing-function: cubic-bezier(0.09, 2.1, 0.84, 0.03);
    width: 128px;
    height: 64px;
    margin-top: -64px;
    margin-left: -64px;
    border-color: #c12680;
    border-top-left-radius: 72px;
    border-top-right-radius: 72px;
}

div.spinner i:nth-child(8) {
    -moz-animation-timing-function: cubic-bezier(0.09, 2.4, 0.96, 0.03);
    -webkit-animation-timing-function: cubic-bezier(0.09, 2.4, 0.96, 0.03);
    animation-timing-function: cubic-bezier(0.09, 2.4, 0.96, 0.03);
    width: 142px;
    height: 71px;
    margin-top: -71px;
    margin-left: -71px;
    border-color: #5d3191;
    border-top-left-radius: 78px;
    border-top-right-radius: 78px;
}

@-moz-keyframes rotate {
    to {
        -moz-transform: rotate(360deg);
        transform: rotate(360deg);
    }
}

@-webkit-keyframes rotate {
    to {
        -webkit-transform: rotate(360deg);
        transform: rotate(360deg);
    }
}

@keyframes rotate {
    to {
        -moz-transform: rotate(360deg);
        -ms-transform: rotate(360deg);
        -webkit-transform: rotate(360deg);
        transform: rotate(360deg);
    }
}