spinners.css

.spinner-1 {
    font-size: 10px;
    background-color: transparent;
    border-radius: 50%;
    width: 2em;
    height: 2em;
    margin: 2em;
    animation: spinner-1 1s infinite ease-in-out;
}
@keyframes spinner-1 {
    0% {
        box-shadow: -2em -2em #000, 2em -2em #CCC, 2em 2em #000, -2em 2em #CCC;
    }
    100% {
        box-shadow: -2em 2em #CCC, -2em -2em #000, 2em -2em #CCC, 2em 2em #000;
    }
}


.spinner-2 {
    font-size: 10px;
    width: 1em;
    height: 1em;
    margin: 1em 5.5em 5em 5.5em;
    border-radius: 50%;
    animation: spinner-2 1s infinite linear;
    background-color: transparent;
    transform: translateZ(0);
}
@keyframes spinner-2 {
    0%, 75%, 100% {
        box-shadow: -4.5em 2em 0 .5em #CCC, -1.5em 2em 0 .5em #CCC, 1.5em 2em 0 .5em #CCC, 4.5em 2em 0 .5em #CCC;
    }
    15% {
        box-shadow: -4.5em 2em 0 .7em #000, -1.5em 2em 0 .5em #CCC, 1.5em 2em 0 .5em #CCC, 4.5em 2em 0 .5em #CCC;
    }
    30% {
        box-shadow: -4.5em 2em 0 .5em #CCC, -1.5em 2em 0 .7em #000, 1.5em 2em 0 .5em #CCC, 4.5em 2em 0 .5em #CCC;
    }
    45% {
        box-shadow: -4.5em 2em 0 .5em #CCC, -1.5em 2em 0 .5em #CCC, 1.5em 2em 0 .7em #000, 4.5em 2em 0 .5em #CCC;
    }
    60% {
        box-shadow: -4.5em 2em 0 .5em #CCC, -1.5em 2em 0 .5em #CCC, 1.5em 2em 0 .5em #CCC, 4.5em 2em 0 .7em #000;
    }
}


.spinner-3 {
    font-size: 10px;
    width: 2em;
    height: 2em;
    margin: 0 0 4em 0;
    background-color: transparent;
    border-radius: 50%;
    animation: spinner-3 2.5s infinite linear;
}
@keyframes spinner-3 {
    0% {
        box-shadow: -10.5em 2em transparent, -10.5em 2em transparent, -10.5em 2em transparent, -10.5em 2em transparent;
    }
    5% {
        box-shadow: -10.5em 2em transparent, -10.5em 2em transparent, -10.5em 2em transparent, -5.5em 2em #888;
    }
    10% {
        box-shadow: -10.5em 2em transparent, -10.5em 2em transparent, -6.5em 2em #888, -0.5em 2em;
    }
    15% {
        box-shadow: -10.5em 2em transparent, -7.5em 2em #888, -2.5em 2em, 4.5em 2em;
    }
    20% {
        box-shadow: -8.5em 2em #888, -4.5em 2em, 1.5em 2em, 4.5em 2em;
    }
    25% {
        box-shadow: -6.5em 2em, -1.5em 2em, 1.5em 2em, 4.5em 2em;
    }
    30%, 55% {
        box-shadow: -4.5em 2em, -1.5em 2em, 1.5em 2em, 4.5em 2em;
    }
    60% {
        box-shadow: -4.5em 2em, -1.5em 2em, 1.5em 2em, 6.5em 2em;
    }
    65% {
        box-shadow: -4.5em 2em, -1.5em 2em, 4.5em 2em, 8.5em 2em #888;
    }
    70% {
        box-shadow: -4.5em 2em, 2.5em 2em, 7.5em 2em #888, 10.5em 2em transparent;
    }
    75% {
        box-shadow: 0.5em 2em, 6.5em 2em #888, 10.5em 2em transparent, 10.5em 2em transparent;
    }
    80% {
        box-shadow: 5.5em 2em #888, 10.5em 2em transparent, 10.5em 2em transparent, 10.5em 2em transparent;
    }
    85%, 100% {
        box-shadow: 10.5em 2em transparent, 10.5em 2em transparent, 10.5em 2em transparent, 10.5em 2em transparent;
    }
}


.spinner-4 {
    font-size: 10px;
    width: 1em;
    height: 1em;
    margin: 0 0 4em 0;
    border-radius: 50%;
    animation: spinner-4 1.5s infinite linear;
    background-color: transparent;
    transform: translateZ(0);
}
@keyframes spinner-4 {
    0%, 90%, 100% {
        box-shadow: -4.5em 2em 0 -.5em, -1.5em 2em 0 -.5em, 1.5em 2em 0 -.5em, 4.5em 2em 0 -.5em;
    }
    10% {
        box-shadow: -4.5em 2em 0 0em, -1.5em 2em 0 -.5em, 1.5em 2em 0 -.5em, 4.5em 2em 0 -.5em;
    }
    20% {
        box-shadow: -4.5em 2em 0 .5em, -1.5em 2em 0 0em, 1.5em 2em 0 -.5em, 4.5em 2em 0 -.5em;
    }
    30% {
        box-shadow: -4.5em 2em 0 1em, -1.5em 2em 0 .5em, 1.5em 2em 0 0em, 4.5em 2em 0 -.5em;
    }
    40% {
        box-shadow: -4.5em 2em 0 .5em, -1.5em 2em 0 1em, 1.5em 2em 0 .5em, 4.5em 2em 0 0em;
    }
    50% {
        box-shadow: -4.5em 2em 0 0em, -1.5em 2em 0 .5em, 1.5em 2em 0 1em, 4.5em 2em 0 .5em;
    }
    60% {
        box-shadow: -4.5em 2em 0 -.5em, -1.5em 2em 0 0em, 1.5em 2em 0 .5em, 4.5em 2em 0 1em;
    }
    70% {
        box-shadow: -4.5em 2em 0 -.5em, -1.5em 2em 0 -.5em, 1.5em 2em 0 0em, 4.5em 2em 0 .5em;
    }
    80% {
        box-shadow: -4.5em 2em 0 -.5em, -1.5em 2em 0 -.5em, 1.5em 2em 0 -.5em, 4.5em 2em 0 0em;
    }
}


.spinner-5 {
    font-size: 10px;
    margin: 2em;
    position: relative;
}
.spinner-5,
.spinner-5::before,
.spinner-5::after {
    width: 1em;
    height: 5em;
    background-color: black;
    animation: spinner-5 1.5s infinite ease-in-out;
}
.spinner-5::before,
.spinner-5::after {
    content: "";
    position: absolute;
    top: 0em;
}
.spinner-5::before {
    left: -1.5em;
    animation-delay: -.3s;
}
.spinner-5 {
    animation-delay: -.15s;
}
.spinner-5::after {
    left: 1.5em;
    animation-delay: 0s;
}
@keyframes spinner-5 {
    0%, 30%, 100% {
        box-shadow: 0em 0em, 0em 0em;
    }
    15% {
        box-shadow: 0em 2em, 0em -2em;
    }
}


.spinner-6 {
    font-size: 10px;
    width: 2em;
    height: 2em;
    animation: spinner-6 1s infinite linear;
    background-color: transparent;
    margin: 2em;
    transform: translateZ(0);
}
@keyframes spinner-6 {
    0%, 100% {
        box-shadow: 0 -2em 0 -.2em, 2em -2em 0 -.3em, 2em 0 0 -.6em, 2em 2em 0 -1em transparent, 0 2em 0 -1em, -2em 2em 0 -1em transparent, -2em 0 0 -.6em, -2em -2em 0 -.3em;
    }
    12.5% {
        box-shadow: 0 -2em 0 -.3em, 2em -2em 0 -.2em, 2em 0 0 -.3em, 2em 2em 0 -.6em, 0 2em 0 -1em transparent, -2em 2em 0 -1em, -2em 0 0 -1em transparent, -2em -2em 0 -.6em;
    }
    25% {
        box-shadow: 0 -2em 0 -.6em, 2em -2em 0 -.3em, 2em 0 0 -.2em, 2em 2em 0 -.3em, 0 2em 0 -.6em, -2em 2em 0 -1em transparent, -2em 0 0 -1em, -2em -2em 0 -1em transparent;
    }
    37.5% {
        box-shadow: 0 -2em 0 -1em transparent, 2em -2em 0 -.6em, 2em 0 0 -.3em, 2em 2em 0 -.2em, 0 2em 0 -.3em, -2em 2em 0 -.6em, -2em 0 0 -1em transparent, -2em -2em 0 -1em;
    }
    50% {
        box-shadow: 0 -2em 0 -1em, 2em -2em 0 -1em transparent, 2em 0 0 -.6em, 2em 2em 0 -.3em, 0 2em 0 -.2em, -2em 2em 0 -.3em, -2em 0 0 -.6em, -2em -2em 0 -1em transparent;
    }
    62.5% {
        box-shadow: 0 -2em 0 -1em transparent, 2em -2em 0 -1em, 2em 0 0 -1em transparent, 2em 2em 0 -.6em, 0 2em 0 -.3em, -2em 2em 0 -.2em, -2em 0 0 -.3em, -2em -2em 0 -.6em;
    }
    75% {
        box-shadow: 0 -2em 0 -.6em, 2em -2em 0 -1em transparent, 2em 0 0 -1em, 2em 2em 0 -1em transparent, 0 2em 0 -.6em, -2em 2em 0 -.3em, -2em 0 0 -.2em, -2em -2em 0 -.3em;
    }
    87.5% {
        box-shadow: 0 -2em 0 -.3em, 2em -2em 0 -.6em, 2em 0 0 -1em transparent, 2em 2em 0 -1em, 0 2em 0 -1em transparent, -2em 2em 0 -.6em, -2em 0 0 -.3em, -2em -2em 0 -.2em;
    }
}


.spinner-7 {
    border-radius: 50%;
    background-color: transparent;
    font-size: 10px;
    width: 1.5em;
    height: 1.5em;
    margin: 3em;
    animation: spinner-7 1s infinite steps(8);
}
@keyframes spinner-7 {
    0%, 100% {
        box-shadow: 0 -2.8em #000, 2em -2em #DDD, 2.8em 0 #DDD, 2em 2em #DDD, 0 2.8em #DDD, -2em 2em #DDD, -2.8em 0 #DDD, -2em -2em #DDD;
    }
    12.5% {
        box-shadow: 0 -2.8em #DDD, 2em -2em #000, 2.8em 0 #DDD, 2em 2em #DDD, 0 2.8em #DDD, -2em 2em #DDD, -2.8em 0 #DDD, -2em -2em #DDD;
    }
    25% {
        box-shadow: 0 -2.8em #DDD, 2em -2em #DDD, 2.8em 0 #000, 2em 2em #DDD, 0 2.8em #DDD, -2em 2em #DDD, -2.8em 0 #DDD, -2em -2em #DDD;
    }
    37.5% {
        box-shadow: 0 -2.8em #DDD, 2em -2em #DDD, 2.8em 0 #DDD, 2em 2em #000, 0 2.8em #DDD, -2em 2em #DDD, -2.8em 0 #DDD, -2em -2em #DDD;
    }
    50% {
        box-shadow: 0 -2.8em #DDD, 2em -2em #DDD, 2.8em 0 #DDD, 2em 2em #DDD, 0 2.8em #000, -2em 2em #DDD, -2.8em 0 #DDD, -2em -2em #DDD;
    }
    62.5% {
        box-shadow: 0 -2.8em #DDD, 2em -2em #DDD, 2.8em 0 #DDD, 2em 2em #DDD, 0 2.8em #DDD, -2em 2em #000, -2.8em 0 #DDD, -2em -2em #DDD;
    }
    75% {
        box-shadow: 0 -2.8em #DDD, 2em -2em #DDD, 2.8em 0 #DDD, 2em 2em #DDD, 0 2.8em #DDD, -2em 2em #DDD, -2.8em 0 #000, -2em -2em #DDD;
    }
    87.5% {
        box-shadow: 0 -2.8em #DDD, 2em -2em #DDD, 2.8em 0 #DDD, 2em 2em #DDD, 0 2.8em #DDD, -2em 2em #DDD, -2.8em 0 #DDD, -2em -2em #000;
    }
}


.spinner-8 {
    font-size: 10px;
    width: 6em;
    height: 6em;
    border: 3em solid #CCC;
    box-sizing: border-box;
    animation: spinner-8 .8s infinite steps(4);
}
@keyframes spinner-8 {
    0%, 100% {
        border-color: #CCC;
        border-top-color: #000;
    }
    25% {
        border-color: #CCC;
        border-right-color: #000;
    }
    50% {
        border-color: #CCC;
        border-bottom-color: #000;
    }
    75% {
        border-color: #CCC;
        border-left-color: #000;
    }
}


.spinner-9 {
    font-size: 8px;
    border: 1.5em solid #DDD;
    border-radius: 50%;
    border-top-color: black;
    box-sizing: border-box;
    width: 10em;
    height: 10em;
    animation: spinner-9 1s infinite linear;
}
@keyframes spinner-9 {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}


.spinner-10 {
    font-size: 8px;
    border: 1.5em solid black;
    border-radius: 50%;
    border-top-color: transparent;
    box-sizing: border-box;
    width: 10em;
    height: 10em;
    position: relative;
    animation: spinner-10 1s infinite linear;
}
.spinner-10::before,
.spinner-10::after {
    content: "";
    position: absolute;
    border-radius: 50%;
    background-color: black;
    width: 1.5em;
    height: 1.5em;
    left: 2.75em;
    top: -1.5em;
    transform-origin: .75em 5em;
}
.spinner-10::before {
    transform: rotate(-45deg);
}
.spinner-10::after {
    transform: rotate(45deg);
}
@keyframes spinner-10 {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}


.spinner-11 {
    font-size: 8px;
    width: 10em;
    height: 10em;
    position: relative;
    border: 1.5em solid transparent;
    border-top-color: black;
    border-bottom-color: black;
    border-radius: 50%;
    box-sizing: border-box;
    animation: spinner-11 1.5s infinite linear;
}
.spinner-11::before,
.spinner-11::after {
    content: "";
    position: absolute;
    box-sizing: border-box;
    border: 1em solid transparent;
}
.spinner-11::before {
    left: 5.4em;
    top: -.6em;
    border-right-color: black;
    border-bottom-color: black;
}
.spinner-11::after {
    left: -.3em;
    top: 5.6em;
    border-top-color: black;
    border-left-color: black;
}
@keyframes spinner-11 {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}


.spinner-12 {
    font-size: 8px;
    position: relative;
    animation: spinner-12 2s infinite linear;
}
.spinner-12,
.spinner-12::before,
.spinner-12::after {
    width: 10em;
    height: 10em;
    border: 1.5em solid transparent;
    border-top-color: black;
    border-radius: 50%;
    box-sizing: border-box;
}
.spinner-12::before,
.spinner-12::after {
    content: "";
    position: absolute;
    left: -1.5em;
    top: -1.5em;
}
.spinner-12::before {
    transform: rotate(120deg);
}
.spinner-12::after {
    transform: rotate(240deg);
}
@keyframes spinner-12 {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}


.spinner-13 {
    font-size: 8px;
    width: 10em;
    height: 10em;
    position: relative;
}
.spinner-13::before,
.spinner-13::after {
    content: "";
    position: absolute;
    background-color: black;
    left: 0em;
    top: 0em;
    animation-duration: 1s;
    animation-timing-function: linear;
    animation-iteration-count: infinite;
}
.spinner-13::before {
    animation-name: spinner-13-before;
}
.spinner-13::after {
    animation-name: spinner-13-after;
}
@keyframes spinner-13-before {
    0%, 100% {
        width: 1.5em;
        height: 1.5em;
        left: 0em;
        top: 0em;
    }
    24% {
        width: 10em;
        height: 1.5em;
        left: 0em;
        top: 0em;
    }
    25% {
        width: 1.5em;
        height: 1.5em;
        left: 8.5em;
        top: 0em;
    }
    49% {
        width: 1.5em;
        height: 10em;
        left: 8.5em;
        top: 0em;
    }
    50% {
        width: 1.5em;
        height: 1.5em;
        left: 8.5em;
        top: 8.5em;
    }
    74% {
        width: 10em;
        height: 1.5em;
        left: 0em;
        top: 8.5em;
    }
    75% {
        width: 1.5em;
        height: 1.5em;
        left: 0em;
        top: 8.5em;
    }
    99% {
        width: 1.5em;
        height: 10em;
        left: 0em;
        top: 0em;
    }
}
@keyframes spinner-13-after {
    0%, 100% {
        width: 1.5em;
        height: 10em;
        left: 0em;
        top: 0em;
    }
    24% {
        width: 1.5em;
        height: 1.5em;
        left: 0em;
        top: 0em;
    }
    25% {
        width: 10em;
        height: 1.5em;
        left: 0em;
        top: 0em;
    }
    49% {
        width: 1.5em;
        height: 1.5em;
        left: 8.5em;
        top: 0em;
    }
    50% {
        width: 1.5em;
        height: 10em;
        left: 8.5em;
        top: 0em;
    }
    74% {
        width: 1.5em;
        height: 1.5em;
        left: 8.5em;
        top: 8.5em;
    }
    75% {
        width: 10em;
        height: 1.5em;
        left: 0em;
        top: 8.5em;
    }
    99% {
        width: 1.5em;
        height: 1.5em;
        left: 0em;
        top: 8.5em;
    }
}


.spinner-14 {
    font-size: 10px;
    width: 10em;
    height: 10em;
    background-color: white;
    border-radius: 50%;
    border-top: 1.4em solid transparent;
    border-left: 1em solid black;
    box-sizing: border-box;
    position: relative;
    animation: spinner-14 .7s infinite linear;
}
.spinner-14::before {
    content: "";
    width: 1.2em;
    height: 1.2em;
    position: absolute;
    left: 3.5em;
    top: -1.2em;
    background-color: black;
    border-radius: 50%;
    transform-origin: .5em 5.4em;
    transform: rotate(-45deg);
}
@keyframes spinner-14 {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}


.spinner-15 {
    font-size: 10px;
    width: 10em;
    height: 10em;
    border-radius: 50%;
    border: 1.2em solid #DDD;
    box-sizing: border-box;
    position: relative;
}
.spinner-15::before {
    content: "";
    width: 1em;
    height: 1em;
    position: absolute;
    left: .2em;
    top: .2em;
    transform-origin: 3.6em 3.6em;
    background-color: black;
    border-radius: 50%;
    animation: spinner-15 1.5s infinite linear;
}
@keyframes spinner-15 {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}


.spinner-16 {
    font-size: 10px;
    width: 10em;
    height: 10em;
    position: relative;
}
.spinner-16::before,
.spinner-16::after {
    content: "";
    background-color: transparent;
    position: absolute;
    left: 4.5em;
    top: 4.5em;
    width: 1em;
    height: 1em;
    border-radius: 50%;
    box-sizing: border-box;
    border: .2em solid black;
    animation: spinner-16 1s infinite cubic-bezier(0, 0.25, 0.75, 1);
}
.spinner-16::before {
    animation-delay: 0s;
}
.spinner-16::after {
    animation-delay: -.5s;
}
@keyframes spinner-16 {
    0% {
        opacity: 1;
        transform: scale(0);
    }
    100% {
        opacity: 0;
        transform: scale(10);
    }
}


.spinner-17 {
    font-size: 8px;
    width: 10em;
    height: 10em;
    position: relative;
    animation: spinner-17 .9s infinite linear;
}
.spinner-17::before,
.spinner-17::after {
    content: "";
    position: absolute;
}
.spinner-17::before {
    width: 10em;
    height: 5em;
    left: 0;
    top: 0;
    background: linear-gradient(45deg, transparent, transparent 1.5em, transparent 1.5em, black 6em, black 6em, black);
    border-radius: 5em 5em 0 0;
}
.spinner-17::after {
    animation-delay: -.5s;
    width: 7em;
    height: 3.5em;
    left: 1.5em;
    top: 1.5em;
    background-color: white;
    border-radius: 3.5em 3.5em 0 0;
}
@keyframes spinner-17 {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}


.spinner-heart {
    font-size: 10px;
    width: 10em;
    height: 10em;
    position: relative;
    background-color: transparent;
    animation: spinner-heart .5s infinite cubic-bezier(1, 0, 1, 1);
}
.spinner-heart::before,
.spinner-heart::after {
    content: "";
    position: absolute;
    background-color: black;
}
.spinner-heart::before {
    left: 2.5em;
    top: 0;
    width: 5em;
    height: 7.5em;
    border-radius: 2.5em 2.5em 0 0;
 }
.spinner-heart::after {
    left: 0;
    top: 2.5em;
    width: 7.5em;
    height: 5em;
    border-radius: 2.5em 0 0 2.5em;
}
@keyframes spinner-heart {
    0% {
        transform: scale(0.7) rotate(45deg);
        opacity: 1;
    }
    100% {
        transform: scale(1) rotate(45deg);
        opacity: 0.7;
    }
}


.spinner-hydrogen {
    font-size: 10px;
    width: 2em;
    height: 2em;
    margin: 2.5em;
    border-radius: 50%;
    box-shadow: 0 3em 0 -.5em;
    background-color: black;
    animation: spinner-hydrogen 1.5s infinite linear;
}
.spinner-hydrogen::before {
    content: "";
    width: 6em;
    height: 6em;
    position: absolute;
    left: -2.1em;
    top: -2.1em;
    border: .1em solid black;
    border-radius: 50%;
}
@keyframes spinner-hydrogen {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}


.spinner-yin-yang {
    font-size: 10px;
    width: 11em;
    height: 11em;
    border: .5em solid black;
    border-radius: 50%;
    background: linear-gradient(to bottom, black, black 50%, white 50%);
    position: relative;
    box-sizing: border-box;
    animation: spinner-yin-yang 2s infinite linear;
}
.spinner-yin-yang::before,
.spinner-yin-yang::after {
    content: "";
    position: absolute;
    width: 1em;
    height: 1em;
    border-radius: 50%;
}
.spinner-yin-yang::before {
    left: 2em;
    top: 4.5em;
    background-color: #000;
    box-shadow: 0 0 0 2em #FFF;
}
.spinner-yin-yang::after {
    left: 7em;
    top: 4.5em;
    background-color: #FFF;
    box-shadow: 0 0 0 2em #000;
}
@keyframes spinner-yin-yang {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}


.spinner-clock {
    font-size: 10px;
    width: 10em;
    height: 10em;
    position: relative;
    border: .4em solid black;
    border-radius: 50%;
    box-sizing: border-box;
}
.spinner-clock::before,
.spinner-clock::after {
    content: "";
    width: .4em;
    background-color: black;
    position: absolute;
    left: 4.4em;
    border-radius: .4em;
}
.spinner-clock::before {
    height: 4em;
    transform-origin: .2em 3.8em;
    top: .8em;
    animation: spinner-clock 1s infinite linear;
}
.spinner-clock::after {
    height: 3em;
    transform-origin: .2em 2.8em;
    top: 1.8em;
    animation: spinner-clock 12s infinite linear;
}
@keyframes spinner-clock {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}


.spinner-counter {
    font-size: 20px;
    width: 2.2em;
    height: 2em;
    position: relative;
    overflow: hidden;
    line-height: 1;
}
.spinner-counter::before,
.spinner-counter::after {
    animation: spinner-counter 1s infinite steps(10);
    content: "0123456789";
    width: .5em;
    height: 10em;
    top: 0em;
    font-size: 2em;
    font-family: monospace;
    font-weight: bold;
    word-wrap: break-word;
    text-overflow: clip;
    position: absolute;
}
.spinner-counter::before {
    left: 0em;
    animation-duration: 10s;
}
.spinner-counter::after {
    left: .5em;
    animation-duration: 1s;
}
@keyframes spinner-counter {
    0% {
        transform: translateY(0);
    }
    100% {
        transform: translateY(-10em);
    }
}


.spinner-zebra {
    font-size: 10px;
    width: 10em;
    height: 4em;
    border: .5em solid black;
    box-sizing: border-box;
    overflow: hidden;
}
.spinner-zebra::before {
    content: "";
    background: repeating-linear-gradient(45deg, black, black 1em, white 1em, white 2em);
    position: relative;
    display: inline-block;
    width: 10em;
    animation: spinner-zebra .5s infinite linear;
}
@keyframes spinner-zebra {
    0% {
        height: 3em;
    }
    100% {
        height: 5.8em;
    }
}


.spinner-collisions {
    font-size: 5px;
    width: 18em;
    height: 14em;
    border:  2em solid black;
    border-left-color: black;
    box-sizing: border-box;
    position: relative;
}
.spinner-collisions::before {
    content: "";
    width: 2em;
    height: 2em;
    position: absolute;
    left: 6em;
    top: 8em;
    background-color: black;
    border-radius: 50%;
    animation: spinner-collisions 2s infinite linear;
}
@keyframes spinner-collisions {
    0%, 100% {
        transform: translate(0em, 0em);
    }
    12% {
        transform: translate(6em, -6em);
    }
    16% {
        transform: translate(4em, -8em);
    }
    34% {
        transform: translate(-4em, 0em);
    }
    38% {
        transform: translate(-6em, -2em);
    }
    50% {
        transform: translate(0em, -8em);
    }
    62% {
        transform: translate(6em, -2em);
    }
    66% {
        transform: translate(4em, 0em);
    }
    84% {
        transform: translate(-4em, -8em);
    }
    88% {
        transform: translate(-6em, -6em);
    }
}


.spinner-glider {
    font-size: 8px;
    width: 11em;
    height: 11em;
    border: .5em solid black;
    background-color: white;
    position: relative;
    overflow: hidden;
}
.spinner-glider::before,
.spinner-glider::after {
    content: "";
    position: absolute;
    animation-duration: .4s;
    animation-timing-function: linear;
    animation-iteration-count: infinite;
}
.spinner-glider::before {
    width: 2em;
    height: 2em;
    background-color: transparent;
    animation-name: spinner-glider-shift, spinner-glider-cells;
}
.spinner-glider::after {
    width: 14em;
    height: 14em;
    background: repeating-linear-gradient(0deg, #666, #666 1px, transparent 1px, transparent 2em), repeating-linear-gradient(90deg, #666, #666 1px, transparent 1px, transparent 2em);
    animation-name: spinner-glider-shift;
}
@keyframes spinner-glider-shift {
    0% {
        left: -1em;
        top: 0em;
    }
    100% {
        left: -3em;
        top: -2em;
    }
}
@keyframes spinner-glider-cells {
    0%, 24% {
        box-shadow: 6em 2em, 4em 4em transparent, 6em 4em transparent, 8em 4em, 4em 6em, 6em 6em, 8em 6em, 10em 6em transparent, 6em 8em transparent, 8em 8em transparent, 10em 8em transparent;
    }
    25%, 49% {
        box-shadow: 6em 2em transparent, 4em 4em, 6em 4em transparent, 8em 4em, 4em 6em transparent, 6em 6em, 8em 6em, 10em 6em transparent, 6em 8em, 8em 8em transparent, 10em 8em transparent;
    }
    50%, 74% {
        box-shadow: 6em 2em transparent, 4em 4em transparent, 6em 4em transparent, 8em 4em, 4em 6em, 6em 6em transparent, 8em 6em, 10em 6em transparent, 6em 8em, 8em 8em, 10em 8em transparent;
    }
    75%, 99% {
        box-shadow: 6em 2em transparent, 4em 4em transparent, 6em 4em, 8em 4em transparent, 4em 6em transparent, 6em 6em transparent, 8em 6em, 10em 6em, 6em 8em, 8em 8em, 10em 8em transparent;
    }
    100% {
        box-shadow: 6em 2em transparent, 4em 4em transparent, 6em 4em transparent, 8em 4em, 4em 6em transparent, 6em 6em transparent, 8em 6em transparent, 10em 6em, 6em 8em, 8em 8em, 10em 8em;
    }
}


.spinner-wi-fi {
    font-size: 10px;
    width: 2em;
    height: 2em;
    border-radius: 50%;
    background-color: black;
    position: relative;
    margin: 3.5em 3.5em 1.5em 1.5em;
    animation: spinner-wi-fi-core 1.2s infinite linear;
    animation-delay: -.4s;
}
.spinner-wi-fi::before,
.spinner-wi-fi::after {
    content: "";
    position: absolute;
    background-color: transparent;
    border: 1em solid transparent;
    border-top-color: black;
    border-radius: 50%;
    animation: spinner-wi-fi-signal 1.2s infinite linear;
}
.spinner-wi-fi::before {
    width: 3em;
    height: 3em;
    left: -1.5em;
    top: -1.5em;
    animation-delay: -.2s;
}
.spinner-wi-fi::after {
    width: 6em;
    height: 6em;
    left: -3em;
    top: -3em;
    animation-delay: 0s;
}
@keyframes spinner-wi-fi-core {
    0%, 30%, 100% {
        background-color: black;
    }
    15% {
        background-color: #888;
    }
}
@keyframes spinner-wi-fi-signal {
    0%, 30%, 100% {
        border-top-color: black;
        transform: scale(1) rotate(45deg);
    }
    15% {
        border-top-color: #888;
        transform: scale(1.1) rotate(45deg);
    }
}