menu item with subitems on mobile

Hi,
on mobile menu I have 2 items (Language and My Account) with subitems, but the icon to display subitems is not visible. I added some css and now I can see a box on the right side of the menu item, and if I click it expands in subitems, but I want it cleary clickable, with an arrow icon or similar.

.wd-nav-mobile .menu-item-has-children {
position: relative;
}

.wd-nav-mobile .wd-nav-opener {
display: flex !important;
width: 50px !important;
min-width: 50px !important;
height: 50px !important;
position: absolute;
right: 0;
top: 0;
z-index: 10;
cursor: pointer;
pointer-events: auto !important;
}

}

Can you please help me to set it correctly so that the menu items with subitems are clearly visible?
thank you