#include <QtGui>

int main(int argc, char **argv)
{
    QApplication a(argc, argv);
    QWidget w;
    QVBoxLayout *vbox = new QVBoxLayout(&w);
    QToolBox *tb = new QToolBox;
    tb->addItem(new QLineEdit, "One");
    tb->addItem(new QLineEdit, "Two");
    vbox->addWidget(tb);
    w.setStyleSheet("QToolBox::tab { "
        "background-color: qlineargradient(spread:pad, x1:1, y1:1, x2:1, y2:0, stop:0.225989 rgba(187, 215, 252, 255), stop:0.723164 rgba(248, 251, 252, 255)); "
        "border-color: rgb(0, 0, 0); "
        "min-height: 50px; "
        "max-height: 50px; "
        "} "
        "QToolBox { "
        "border-color: rgb(0, 0, 0); "
        "} ");
    w.show();
    return a.exec();
}