.items-navigation {
    position: relative;
}
@keyframes pagenRotate360deg {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}
.items-navigation:before {
    position: absolute;
    content: '';
    bottom: calc(100% + 10px);
    left: calc(50% - 15px);
    width: 30px;
    height: 30px;
    border-radius: 50%;
    border: 3px solid #0049dd;
    border-left-color: transparent;
    animation: pagenRotate360deg 0.7s linear infinite;
    opacity: 0;
}
.items-navigation.loading:before {
    opacity: 1;
}
.catalog-pagination_container {
    margin-top: 50px;
}