diff --git a/components/thtmlport/package/htmlmisc.pas b/components/thtmlport/package/htmlmisc.pas
index 892f48c4a..f239a9d2c 100755
--- a/components/thtmlport/package/htmlmisc.pas
+++ b/components/thtmlport/package/htmlmisc.pas
@@ -651,10 +651,14 @@ begin
   if cchMultiByte < 0 then  {Null terminated?}
     s := lpMultiByteStr
   else
+  begin
+    if lpMultiByteStr = nil then s := ''
+    else
     begin
-    SetLength(s, cchMultiByte);
-    Move(lpMultiByteStr^, s[1], cchMultiByte);
+      SetLength(s, cchMultiByte);
+      Move(lpMultiByteStr^, s[1], cchMultiByte);
     end;
+  end;
   if CodePage = CP_UTF8 then
     begin
     w := UTF8Decode(s);
diff --git a/components/thtmlport/package/htmlun2.pas b/components/thtmlport/package/htmlun2.pas
index cf2995c8c..b0b6a694a 100755
--- a/components/thtmlport/package/htmlun2.pas
+++ b/components/thtmlport/package/htmlun2.pas
@@ -693,12 +693,11 @@ var
   ExtS: TSize;
   Ints: ^Integers;
   L, H, I: integer;
-
 begin
-Extent := 0;   
-Result := 0;
-if (Width <= 0) or (Max = 0) then
-  Exit;
+  Extent := 0;
+  Result := 0;
+  if (Width <= 0) or (Max = 0) then
+    Exit;
 
 {$IFDEF MSWINDOWS}  //Only compile if GetTextExtentExPointW exists
 if not IsWin32Platform then
diff --git a/components/thtmlport/package/styleun.pas b/components/thtmlport/package/styleun.pas
index 46fcc9dc5..f43618590 100644
--- a/components/thtmlport/package/styleun.pas
+++ b/components/thtmlport/package/styleun.pas
@@ -2438,13 +2438,12 @@ if ColorStrings = nil then
   end;
 end;
 
-function ColorFromString(S: string; NeedPound: boolean; var Color: TColor): boolean;
 {Translate StyleSheet color string to Color.  If NeedPound is true, a '#' sign
  is required to preceed a hexidecimal value.}
+function ColorFromString(S: string; NeedPound: boolean; var Color: TColor): boolean;
 const
   LastS: string = '?&%@';
   LastColor: TColor = 0;
-
 var
   I, Rd, Bl: integer;
   S1: string;