testbed/Textualize__textual/docs/examples/app/question02.css

Screen {
    layout: grid;
    grid-size: 2;
    grid-gutter: 2; 
    padding: 2;   
}
#question {
    width: 100%;
    height: 100%;
    column-span: 2;
    content-align: center bottom;
    text-style: bold;
} 

Button {
    width: 100%;
}