.show_more span {
    border: 1px solid #a0a0a0;
    padding: 10px 20px;
    border-radius: 5px;
    font-size: 20px;
    color: #a0a0a0;
    cursor: pointer;
    display: inline-block;
}
.show_more span:hover {
    border: 1px solid #004dac;
    color: #004dac;
}
.show_more {
    text-align: center;
}
#ajax_reviews {
    position: relative;
}
#ajax_reviews .preloader {
    position: absolute;
    top: 0px;
    right: 0px;
    bottom: 0px;
    left: 0px;
    background: #ffffffc9;
    z-index: 100;
}
#ajax_reviews .preloader:before {
    position: fixed;
    content: "";
    background: url(/bitrix/templates/kristalnaya/images/loading.gif) rgba(255, 255, 255, 0.74) 50% 50% no-repeat;
    width: 55px;
    height: 15px;
    left: 50%;
    top: 200px;
    margin-left: -27px;
}