What's the substitute for ::shadow and /deep/?

Question

The two shadow-piercing combinators have been deprecated as stated in https://www.chromestatus.com/features/6750456638341120
Then what\'s the substitude for achieving the

Answer 1

"::v-deep" is working for me. For example:

    .menu {
        // stuff
    }
    /deep/.sub-menu {     // override submenu
        .sub-menu__mini {
                //stuff
            }
            a, a:hover {
                //stuff
            }
        }
    }

becomes:

    .menu {
        // stuff
    }
    ::v-deep .sub-menu {     // override submenu
        .sub-menu__mini {
                //stuff
            }
            a, a:hover {
                //stuff
            }
        }
    }