Offcanvas Overlapping Submenu Item onto Parent Item and Can't Get White Text

I have an submenu overlappiing problem on drop-down parent item

Still no White Text in Offcanvas after CSS you gave me. Submenu text is white but not parent items?
}
.offcanvas-menu .offcanvas-inner ul.menu, .offcanvas-menu .offcanvas-inner ul.menu ul{
position:relative;
bottom:35px;
}
.offcanvas-menu .offcanvas-inner ul.menu>li a, .offcanvas-menu .offcanvas-inner ul.menu>li span{
color:white !important;
}
.offcanvas-menu .offcanvas-inner a{
color:white !important;
}