Link test underline hover effect

                a {
                    color: $color__white;
                    text-transform: uppercase;
                    font-size: 1.2rem;
                    height: 24px;
                    margin: 6px 6px 6px;
                    display: block;
                    padding: 0px 4px;
                    line-height: 26px;

                    // https://codepen.io/lhorak/pen/bEavyg
                    // Text underline hover effect
                    text-decoration: none;
                    transition: all 0.3s ease-in;

                    &:hover {
                        transition: all 0.3s ease-out;
                        box-shadow: 0 0 0 0 $color__white inset,
                            0 -1px 0 0 $color__white inset;
                    }
                    // Text underline hover effect
                }