dialog.style.border = '1px solid rgba(0, 0, 0, 0.3)';
dialog.style.borderRadius = '6px';
dialog.style.boxShadow = '0 3px 7px rgba(0, 0, 0, 0.3)';
+ dialog.style.marginLeft = '10em';
+ dialog.style.marginRight = '10em';
var content = frame.document.createElement('p');
content.innerHTML = 'Edit tags for ' + message_id;