back css...

text-decoration: dekorasi garis pada text;
text-decoration: none(tidak ada apapun);
text-decoration: underline(garis bawah);
text-decoration: overline(garis di atas);
text-decoration: line-through(di tengah/ text tercoret);

text-decoration: none
text-decoration: underline
text-decoration: overline
text-decoration: line-through