Menu vertical is an item from another menu Vertical

This is mi code:

$m            = $this->layout->add('Menu_Horizontal', null, 'Top_Menu');
$t = $m->addMenu(['Menu Varios', 'Vertical']);
$co = $t->addMenu(['Menu 1', 'Vertical']);
$co1 = $co->addItem('Option 1 _ Menu 1');
$co2 = $co->addItem('Option 2 _ Menu 2');


$se = $t->addMenu(['Menu 2', 'Vertical']);
$se1 = $se->addItem('Option 1 _ Menu 2 ');
$se2 = $se->addItem('Option 2 _ Menu 2');


$ca = $t->addMenu(['Menu 3', 'Verñtical']);
$ca1 = $ca->addItem('Option 1 _ Menu 3');
$ca2 = $ca->addItem('Option 2 _ Menu 3');

the menu not work.
What’s wrong ?
Thanks

Can you inspect HTML is it ok?

In mouseover “Menu Varios” show menu items overlapping