QuestionScreen {
    layout: grid;
    grid-size: 2 2;                
    align: center bottom;
}

QuestionScreen > Label {
    margin: 1;       
    text-align: center;
    column-span: 2;    
    width: 1fr;
}

QuestionScreen Button {
    margin: 2; 
    width: 1fr;     
}
