h1,
h2,
h3,
h4,
h5,
h6 {
    &:hover .zola-anchor {
        opacity: 1;
    }
}

.zola-anchor {
    opacity: 0;
    transition: var(--transition);
    margin: 0 0.25em;

    &:hover .icon {
        background-color: var(--primary-color);
    }

    .icon {
        $icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16'%3E%3Cpath d='M4 4C1.8 4 0 5.8 0 8s1.8 4 4 4v-2c-1.125 0-2-.875-2-2s.875-2 2-2h3c1.125 0 2 .875 2 2 0 .84-.496 1.535-1.207 1.84l.785 1.84A4 4 0 0 0 11 8c0-2.2-1.8-4-4-4zm8 2v2c1.125 0 2 .875 2 2s-.875 2-2 2H9c-1.125 0-2-.875-2-2 0-.828.484-1.516 1.184-1.828l-.817-1.828A4.01 4.01 0 0 0 5 10c0 2.2 1.8 4 4 4h3c2.2 0 4-1.8 4-4s-1.8-4-4-4'/%3E%3C/svg%3E");
        -webkit-mask-image: $icon;
        -webkit-mask-size: cover;
        mask-image: $icon;
        mask-size: cover;
        transition: var(--transition);
        background-color: var(--fg-muted-4);
        width: 1em;
        height: 1em;
    }
}

:target .zola-anchor .icon {
    background-color: var(--primary-color-alpha);
}