.boldbutton::after{
    content:'\f032';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    font-size: var(--post-styling);
    
}
.italicbutton::after{
    content:'\f033';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    font-size: var(--post-styling);
}
.underlinebutton::after{
    content:'\f0cd';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    font-size: var(--post-styling);
}