.gmen {margin-right:5px;padding:13px 8px 13px 8px;background:#;border-bottom:1px solid #CFCFCF;border-top:1px solid #;}       
.gmen a {background:#000000;padding:5px;margin-right:10px;border:1px solid #828282;}       
.gmen a:link, .gmen a:active, .gmen a:visited {color:#828282;text-decoration:none;}       
.gmen a:hover {background:#CFCFCF;color:#fff;border:1px solid #828282;}       
.buttonfile {background:#000000; border: 1px solid #252525; padding : 10px; font: 12px; text-align: center; color: #ffffff; width: 100%;}

<br><table border="0" cellpadding="5" cellspacing="0" width="100%" style="border:1px solid #4f4f4f;"><tr><td style="background:#000000;"><input class="buttonfile" type="button" onclick="document.location.href='/load/0-0-0-0-1'; return false;" value="Добавить файл"><br> </td></tr></table><br>