div.operation {
}

div.operation_top_space {
    height: 7.25vmin;
    min-height: 46px;
}

div.operation div.operation_tabs {
    display: none;
    position: fixed;
    left: 15px;
    top: 88px;
    /*display: flex;*/
    flex-direction: row;
    align-items: flex-end;
    justify-content: center;
}

div.operation div.operation_tab {
    font-size: 1.1vw;
    margin: 0 0.6vw;
    cursor: pointer;
    user-select: none;
}

div.operation div.operation_tab.active {
    font-size: 1.25vw;
    font-weight: bold;
}

div.operation_sub_pages {
    /*position: absolute;
    top: 135px;
    left: 0;
    right: 0;*/
}

@media screen and (max-width: 768px) {
    div.operation div.operation_tab {
        font-size: 14px;
        margin: 0 6px;
    }

    div.operation div.operation_tab.active {
        font-size: 16px;
    }
}