diff --git a/lib/Subtitle/SSA/Style.pm b/lib/Subtitle/SSA/Style.pm
index 70208a8..ef2cd70 100644
--- a/lib/Subtitle/SSA/Style.pm
+++ b/lib/Subtitle/SSA/Style.pm
@@ -28,11 +28,11 @@ my %STYLE_DEFAULTS = (
   strikeout         => { type => 'b', value =>   0, name => 'StrikeOut' },
   scalex            => { type => 'd', value => 100, name => 'ScaleX' },
   scaley            => { type => 'd', value => 100, name => 'ScaleY' },
-  spacing           => { type => 'd', value =>   0, name => 'Spacing' },
-  angle             => { type => 'd', value =>   0, name => 'Angle' },
+  spacing           => { type => 'f', value =>   0, name => 'Spacing' },
+  angle             => { type => 'f', value =>   0, name => 'Angle' },
   borderstyle       => { type => 'd', value =>   1, name => 'BorderStyle' },
-  outline           => { type => 'd', value =>   2, name => 'Outline' },
-  shadow            => { type => 'd', value =>   0, name => 'Shadow' },
+  outline           => { type => 'f', value =>   2, name => 'Outline' },
+  shadow            => { type => 'f', value =>   0, name => 'Shadow' },
   alignment         => { type => 'd', value =>   2, name => 'Alignment' },
   marginl           => { type => 'd', value =>  10, name => 'MarginL' },
   marginr           => { type => 'd', value =>  10, name => 'MarginR' },
@@ -88,6 +88,10 @@ sub to_string {
     if ($d->{type} eq 'x') {
       $fmt = ($self->{_vers} eq 'ass') ? '&H%08X' : '%d';
       $v = sprintf $fmt, $v;
+    } elsif ($d->{type} eq 'f') {
+      $v = sprintf "%.2f", $v;
+      # hack: make decimal from float if fractional part is zero after round up
+      $v =~ s{\.00$}{}oi;
     } else {
       # use as is
     }