css improvements

static/templates/css.st

@@ -132,6 +132,14 @@ td, th{
     text-align: center;
 }
 
+#archive fieldset{
+    text-align: center;
+}
+
+#archive fieldset a{
+    display: initial;
+}
+
 #archive td, #archive th{
     text-align: left;
 }
@@ -141,7 +149,7 @@ pre {
     margin-left: 10px;
 }
 
-#archive a{
+#archive table a{
     background: none;
     border: none;
     text-decoration: underline;