QComboBox drop down button outside combo box frame

[Dmitry_1]

Hi All,

I'm trying to go outside combo box frame with this (see below) CSS Qt style sheet code.

combo-box-trouble.png

All success except padding, you can see it on picture ( figure 3 ).

Any suggestion ?
Thank you

p.s
How to reproduce: http://pastebin.com/4ZiYRUmB

QComboBox#tab_combo {
margin: 0 26px 0 0; /* make room for the arrow */
padding: 2px 1px 2px 1px;
min-width: 19px;
min-height: 14px;
max-height: 14px;
width: 40px;
height: 14px;
//...strip
}
QComboBox#tab_combo::drop-down {
 subcontrol-origin: margin;
 subcontrol-position: center right;
 
 width: 19px;
 min-width: 19px;
 max-width: 19px;
 
 height: 14px;
 min-height: 14px;
 padding: 0;
 margin: 0;
 
border: 1 solid #515151;
}
 
QComboBox#tab_combo::down-arrow {
 image: url(:/combo_arrow.png);
 
 min-width: 19px;
 max-width: 19px;
 width: 19px;
 
 min-height: 14px;
 max-height: 14px;
 height: 14px;
}

QComboBox#tab_combo {
margin: 0 26px 0 0; /* make room for the arrow */
padding: 2px 1px 2px 1px;
min-width: 19px;
min-height: 14px;
max-height: 14px;
width: 40px;
height: 14px;
//...strip
}
QComboBox#tab_combo::drop-down {
 subcontrol-origin: margin;
 subcontrol-position: center right;

 width: 19px;
 min-width: 19px;
 max-width: 19px;

 height: 14px;
 min-height: 14px;
 padding: 0;
 margin: 0;

border: 1 solid #515151;
}

QComboBox#tab_combo::down-arrow {
 image: url(:/combo_arrow.png);

 min-width: 19px;
 max-width: 19px;
 width: 19px;

 min-height: 14px;
 max-height: 14px;
 height: 14px;
}

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[Dmitry_1]

I have found workaround:

padding: 2 -19px 2 1;
width: 59px;

padding: 2 -19px 2 1;
width: 59px;

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If somebody knows better solution do not hesitate write down it here