#help-box {
    font-family: Helvetica, sans-serif;
    padding: 10px 10px 10px 10px;
    flex: 1;
    overflow: auto;
    outline: none;
}

#help-box h2 {
    font-size: 22px;
    margin: 10px 0 20px 0;
}
#help-box table#keyboard-shortcuts {
    border-collapse: collapse;
}

#help-box table#keyboard-shortcuts tr.keyboard-shortcut-header {
    font-weight: bold;
    background: #efefef;
}

#help-box table#keyboard-shortcuts td, #help-box table#keyboard-shortcuts tr.keyboard-shortcut-header {
    text-align: left;
    border: 1px solid #ddd;
    padding: 10px;
    font-size: 14px;
}

#help-box table#keyboard-shortcuts .keyboard-shortcut-section td {
    border: none;
    font-weight: bold;
    padding: 20px 5px 5px 0;
    font-size: 16px;
}

#help-box table#keyboard-shortcuts tr.keyboard-shortcut-section:first-child td {
    padding-top: 0;
}