am trying to parse a multi-line html file using regex.

HTML code:

 < td>Details< /td> < /tr>  
 < tr class=d1>  
 < td>uss_vod_translator< /td>

Regex Expression:

if ($line =~ m/Details<\/td>\s*<\/tr>\s*<tr\s*class=d1>\s*<td>(\w*)<\/td>/)
    {
            print "$1";
    }

I am using /s* (space) for multi-line, but it is not working.

I searched about it, even used /\? for multi-line but that too did not work.

Can any one please suggest me how to parse a multiline HTML?