html,
body {
    height: 100%
}

body {
    overflow: hidden;
    margin: 0;
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 100%;
    line-height: 1.7;
}

#divIcons {
    position: relative;
    padding: 0 1rem 1rem 1rem;
    height: 100%;
    background: #FFF;
    overflow-y: scroll !important;
    box-sizing: border-box;
}

#divIcons .icon-section {
    background: #FFF;
    margin-bottom: 2rem;
}
#divIcons .icon-header {
    position: sticky;
    top: 0;
    z-index: 10;
    font-weight: bold;
    color: #777;
    background: #FFF;
    width: 100%;
    margin-bottom: 0.5rem;
}
#divIcons .icon-content {
    display: grid;
    gap: 0.5rem;
    grid-template-columns: repeat(12, 1fr);
}


#divIcons .icon-button {
    background: #f5f5f5;
    border: 1px solid transparent;
    width: 40px;
    height: 40px;
    font-size: 20px;
    line-height: 30px;
    color: #495057;
    cursor: pointer;
    overflow: hidden;
    text-align: center;
    position: relative;
}

#divIcons .icon-button:hover {
    background: #cccccc;
    border: 1px solid #bbbbbb;
}