ComboBox Height

Cannot be change ComboBox Height Some example css code
comob_color.png

:host(.my-combobox) [part=“text-field”]{
color:red;
background-color: green;
height:10px;
}
:host(.my-combobox)[part~=“input-field”]{
color:red;
background-color: green;
height:10px;
} this only offest text-field not to be affect input-field