/* Make equation numbers float to the right */
span.eqno {
    float: right;
    margin-left: 0.5em;
}
/* Hide the link and move into margin */
span.eqno a.headerlink {
    visibility: hidden;
    display: inline-block;
    width: 0px;
}
/* Show if the equation is hovered */
div.math:hover a.headerlink {
    visibility: visible;
}