Sticky header hiding menu anchor points

/* From Adrian Garner on Stack Overflow */
/* https://stackoverflow.com/questions/4086107/fixed-page-header-overlaps-in-page-anchors */
:target::before {
    content: "";
    display: block;
    height: 162px; /* Fixed header height for this page. */
    /* margin: -100px 0 0; Negative fixed header height if needed. */
}