@namespace url(http://www.w3.org/1999/xhtml);

a[lang]:after,
a[hreflang]:after {
    color: #000 !important;
    background-color: #fff !important;
    font-weight: bold !important;
    }

a[lang]:after {
    content: "[" attr(lang) "]" !important;
    }

a[hreflang]:after {
    content: "[" attr(hreflang) "]" !important;
}