.loader {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 50px;
    height: 80px;
    position: relative;
}

.loader:before {
    content: "";
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    border-radius: 50%;
}

.loader-inner {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.loader-block {
    display: inline-block;
    width: 10px;
    height: 10px;
    margin: 2px;
    background-color: #fff;
    box-shadow: 0 0 20px #fff;
    animation: loader_562 1.2s cubic-bezier(0.5, 0, 0.5, 1) infinite;
}

.loader-block:nth-child(1) {
    animation-delay: 0.1s;
}

.loader-block:nth-child(2) {
    animation-delay: 0.2s;
}

.loader-block:nth-child(3) {
    animation-delay: 0.3s;
}

.loader-block:nth-child(4) {
    animation-delay: 0.4s;
}

.loader-block:nth-child(5) {
    animation-delay: 0.5s;
}

.loader-block:nth-child(6) {
    animation-delay: 0.6s;
}

.loader-block:nth-child(7) {
    animation-delay: 0.7s;
}

.loader-block:nth-child(8) {
    animation-delay: 0.8s;
}

@keyframes loader_562 {
    0% {
        transform: scale(1);
        box-shadow: 0 0 20px rgba(255, 255, 255, 0.5);
    }

    20% {
        transform: scale(1, 2.5);
        box-shadow: 0 0 50px rgba(255, 255, 255, 0.7);
    }

    40% {
        transform: scale(1);
        box-shadow: 0 0 20px rgba(255, 255, 255, 0.5);
    }
}