How to make proper CSS border in title?

Question

Only one widget class is presented in the image dialog box QTableWidget. My problem is that the bottom border of the header (red square, QHeaderViewclass) overlaps with the left / right color borders! I want sections of red squares to display correctly, like green squares.

Here is the CSS code from Qt Designerwhich I am using:

QTableView#tableWidget QHeaderView::section:horizontal
{
    height: 24px;

    border-style: none;

    border-left: 1px solid #ecedef;
    border-top: 1px solid #161618;
    border-right: 1px solid #b1b1b5;
    border-bottom: 1px solid #161618;

    background-color: qlineargradient(x1:0, y1:0, x2:0, y2:1, stop:0 #f4f4f6, stop:1 #ceced6);
 }

/*
QTableView#tableWidget QHeaderView::section:horizontal:first,
QTableView#tableWidget QHeaderView::section:horizontal:last
{
    border-left-color: qlineargradient(x1:0, y1:0, x2:0, y2:1, stop:0 #f4f4f6, stop:1 #ceced6);
}
*/

Thank!

---

Refresh : larger image just in case ...

Answer 1

I understand how it works!

Decision

QTableView#tableWidget QHeaderView
{
    /* draw the hole hor top & bottom line for the header */
    height: 24px;

    border-top: 1px solid #161618;
    border-bottom: 1px solid #161618;
}

QTableView#tableWidget QHeaderView::section:horizontal:first
{
    border-left-color: qlineargradient(x1:0, y1:0, x2:0, y2:1, stop:0 #f4f4f6, stop:1 #ceced6);
}

QTableView#tableWidget QHeaderView::section:horizontal:last
{
    border-right-color: qlineargradient(x1:0, y1:0, x2:0, y2:1, stop:0 #f4f4f6, stop:1 #ceced6);
}

QTableView#tableWidget QHeaderView::section:horizontal
{
    /* for each section draw ONLY left & right lines */
    height: 24px;

    border-style: none;

    border-left: 1px solid #ecedef;
    border-right: 1px solid #b1b1b5;

    background-color: qlineargradient(x1:0, y1:0, x2:0, y2:1, stop:0 #f4f4f6, stop:1 #ceced6);

 }

And for more information on how this looks:

Anyway, thanks to everyone!