How to create border around modal window

[masa4]

I want to create border around my modal which inherits from QWidget. I tried setting stylesheet to top layout but it doesnt create a border. I tried this:

QHBoxLayout#layoutbox {
     background-color: red;
     border-style: outset;
     border-width: 2px;
     border-radius: 10px;
     border-color: beige;
     font: bold 14px;
     min-width: 10em;
     padding: 6px;
 }

How can i do that?

[jsulm]

@masa4 It would be new to me that layouts can have styles. Layouts are not widgets and have no graphical representation. You need to set stylesheet on your widget.

[JoeCFD]

This post is deleted!