linkMacSystemFont, Segoe UI, Roboto, Oxygen, Ubuntu, Cantarell, Fira Sans, Droid Sans, Helvetica Neue, sans-serif; font-size:16px; color:#374151; -webkit-font-smoothing:antialiased; -moz-osx-font-smoothing:grayscale; margin:0; padding:0;',

    css_textbox: 'padding:0.5rem 0.75rem; border:1px solid #D1D5DB; border-radius:0.25rem; width:100%;',
    css_textbox_pan: 'margin-bottom: 1rem;',
    css_textbox_exp: 'margin-bottom: 1rem;',
    css_textbox_cvd: '',

    css_input_label: 'display:block; font-weight:5