div.JSFormLine.stockPickerButton {

    width: 300px;
    margin-top: 10px;
    position: relative;
}

div.JSFormLine.stockPickerButton div.JSFormInput.stockPicker.button {

    position: absolute;
    top: 0;
    bottom: 0;
    right: 0;
    left: 0;
    padding: 25px;
}