.tab_css {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}

.tab_css .label2 {
    margin: 0 5px 5px 0;
    padding: 10px 16px;
    cursor: pointer;
    border-radius: 5px;
    background: #d0e8f2;
    color: #333;
    opacity: 0.5;
}

.tab_css .label2.b {
    opacity: 1;
    font-weight: bold;
}

.tab_content {
    order: 1;
    width: 100%;
    border-bottom: 3px solid #ddd;
    line-height: 1.6;
    font-size: .9em;
    padding: 15px;
    border-radius: 5px;
}

.tab_css .tab_content {
    display: initial;
}