.x-form-cmbnf-wrap {
    position: relative;
    height: 22px;
}

.x-form-cmbnf-wrap .x-form-cmbnf-combo {
	position: absolute;
	right: 0;
	z-index: 1;
    width: 80%;
}
.x-form-cmbnf-wrap .x-form-cmbnf-text {
    position: absolute;
    left: 0;
    z-index: 2;
    width: 15%;
}