.preloader {
    display: flex;
    justify-content: center;
    align-items: center;
    position: fixed;
    z-index: 10000;
    width: 100vw;
    height: 100vh;
    top: 0;
    background-color: #fff;
}
.preloader img {
    max-width: 92px;
}
.preloader-spinner {
    margin: 30px auto;
    width: 40px;
    height: 40px;
    position: relative;
}
.preloader-spinner__circle {
    width: 100%;
    height: 100%;
    position: absolute;
    left: 0;
    top: 0;
}
.preloader-spinner__circle::before {
    content: '';
    display: block;
    margin: 0 auto;
    width: 15%;
    height: 15%;
    background-color: #000;
    border-radius: 100%;
    -webkit-animation: circleFadeDelay 1.2s infinite ease-in-out both;
    animation: circleFadeDelay 1.2s infinite ease-in-out both;
}
.preloader-spinner__circle:nth-child(2) {
    transform: rotate(30deg);
}
.preloader-spinner__circle:nth-child(2)::before {
    animation-delay: -1.1s;
}
.preloader-spinner__circle:nth-child(3) {
    transform: rotate(60deg);
}
.preloader-spinner__circle:nth-child(3)::before {
    animation-delay: -1s;
}
.preloader-spinner__circle:nth-child(4) {
    transform: rotate(90deg);
}
.preloader-spinner__circle:nth-child(4)::before {
    animation-delay: -0.9s;
}
.preloader-spinner__circle:nth-child(5) {
    transform: rotate(120deg);
}
.preloader-spinner__circle:nth-child(5)::before {
    animation-delay: -0.8s;
}
.preloader-spinner__circle:nth-child(6) {
    transform: rotate(150deg);
}
.preloader-spinner__circle:nth-child(6)::before {
    animation-delay: -0.7s;
}
.preloader-spinner__circle:nth-child(7) {
    transform: rotate(180deg);
}
.preloader-spinner__circle:nth-child(7)::before {
    animation-delay: -0.6s;
}
.preloader-spinner__circle:nth-child(8) {
    transform: rotate(210deg);
}
.preloader-spinner__circle:nth-child(8)::before {
    animation-delay: -0.5s;
}
.preloader-spinner__circle:nth-child(9) {
    transform: rotate(240deg);
}
.preloader-spinner__circle:nth-child(9)::before {
    animation-delay: -0.4s;
}
.preloader-spinner__circle:nth-child(10) {
    transform: rotate(270deg);
}
.preloader-spinner__circle:nth-child(10)::before {
    animation-delay: -0.3s;
}
.preloader-spinner__circle:nth-child(11) {
    transform: rotate(300deg);
}
.preloader-spinner__circle:nth-child(11)::before {
    animation-delay: -0.2s;
}
.preloader-spinner__circle:nth-child(12) {
    transform: rotate(330deg);
}
.preloader-spinner__circle:nth-child(12)::before {
    animation-delay: -0.1s;
}
@keyframes circleFadeDelay {
    0%, 39%, 100% {
        opacity: 0;
   }
    40% {
        opacity: 1;
   }
}