diff --git a/runtime/syntax/haml.vim b/runtime/syntax/haml.vim
index bb144ba..f49eaca 100644
--- a/runtime/syntax/haml.vim
+++ b/runtime/syntax/haml.vim
@@ -1,8 +1,8 @@
 " Vim syntax file
-" Language:     Haml
-" Maintainer:   Tim Pope <vimNOSPAM@tpope.org>
-" Filenames:    *.haml
-" Last Change:	2010 May 21
+" Language:	Haml
+" Maintainer:	Tim Pope <vimNOSPAM@tpope.org>
+" Filenames:	*.haml
+" Last Change:	2010 Jul 26
 
 if exists("b:current_syntax")
   finish
@@ -30,7 +30,7 @@
 
 syn match   hamlBegin "^\s*\%([<>]\|&[^=~ ]\)\@!" nextgroup=hamlTag,hamlClassChar,hamlIdChar,hamlRuby,hamlPlainChar,hamlInterpolatable
 
-syn match   hamlTag        "%\w\+" contained contains=htmlTagName,htmlSpecialTagName nextgroup=@hamlComponent
+syn match   hamlTag        "%\w\+\%(:\w\+\)\=" contained contains=htmlTagName,htmlSpecialTagName nextgroup=@hamlComponent
 syn region  hamlAttributes     matchgroup=hamlAttributesDelimiter start="(" end=")" contained contains=htmlArg,hamlAttributeString,hamlAttributeVariable,htmlEvent,htmlCssDefinition nextgroup=@hamlComponent
 syn region  hamlAttributesHash matchgroup=hamlAttributesDelimiter start="{" end="}" contained contains=@hamlRubyTop nextgroup=@hamlComponent
 syn region  hamlObject         matchgroup=hamlObjectDelimiter     start="\[" end="\]" contained contains=@hamlRubyTop nextgroup=@hamlComponent
diff --git a/runtime/syntax/sass.vim b/runtime/syntax/sass.vim
index 5bee495..082ae71 100644
--- a/runtime/syntax/sass.vim
+++ b/runtime/syntax/sass.vim
@@ -1,8 +1,8 @@
 " Vim syntax file
-" Language:     Sass
-" Maintainer:   Tim Pope <vimNOSPAM@tpope.org>
-" Filenames:    *.sass
-" Last Change:	2010 May 21
+" Language:	Sass
+" Maintainer:	Tim Pope <vimNOSPAM@tpope.org>
+" Filenames:	*.sass
+" Last Change:	2010 Jul 26
 
 if exists("b:current_syntax")
   finish
@@ -13,16 +13,36 @@
 syn case ignore
 
 syn cluster sassCssProperties contains=cssFontProp,cssFontDescriptorProp,cssColorProp,cssTextProp,cssBoxProp,cssGeneratedContentProp,cssPagingProp,cssUIProp,cssRenderProp,cssAuralProp,cssTableProp
-syn cluster sassCssAttributes contains=css.*Attr,cssComment,cssValue.*,cssColor,cssURL,cssImportant,cssError,cssStringQ,cssStringQQ,cssFunction,cssUnicodeEscape,cssRenderProp
+syn cluster sassCssAttributes contains=css.*Attr,scssComment,cssValue.*,cssColor,cssURL,sassDefault,cssImportant,cssError,cssStringQ,cssStringQQ,cssFunction,cssUnicodeEscape,cssRenderProp
 
+syn region sassDefinition matchgroup=cssBraces start="{" end="}" contains=TOP
+
+syn match sassProperty "\%([{};]\s*\|^\)\@<=[[:alnum:]-]\+:" contains=css.*Prop skipwhite nextgroup=sassCssAttribute contained containedin=sassDefinition
 syn match sassProperty "^\s*\zs\s\%([[:alnum:]-]\+:\|:[[:alnum:]-]\+\)"hs=s+1 contains=css.*Prop skipwhite nextgroup=sassCssAttribute
-syn match sassProperty "^\s*\zs\s\%(:\=[[:alnum:]-]\+\s*=\)"hs=s+1 contains=css.*Prop skipwhite nextgroup=sassScript
-syn match sassCssAttribute ".*$" contained contains=@sassCssAttributes,sassConstant
-syn match sassScript ".*$" contained contains=@sassCssAttributes,sassConstant
-syn match sassConstant "![[:alnum:]_-]\+"
-syn match sassConstantAssignment "\%(![[:alnum:]_]\+\s*\)\@<=\%(||\)\==" nextgroup=sassScript skipwhite
-syn match sassMixin  "^=.*"
-syn match sassMixing "^\s\+\zs+.*"
+syn match sassProperty "^\s*\zs\s\%(:\=[[:alnum:]-]\+\s*=\)"hs=s+1 contains=css.*Prop skipwhite nextgroup=sassCssAttribute
+syn match sassCssAttribute +\%("\%([^"]\|\\"\)*"\|'\%([^']\|\\'\)*'\|[^{};]\)*+ contained contains=@sassCssAttributes,sassVariable,sassFunction
+syn match sassDefault "!default\>" contained
+syn match sassVariable "!\%(important\>\|default\>\)\@![[:alnum:]_-]\+"
+syn match sassVariable "$[[:alnum:]_-]\+"
+syn match sassVariableAssignment "\%([!$][[:alnum:]_-]\+\s*\)\@<=\%(||\)\==" nextgroup=sassCssAttribute skipwhite
+syn match sassVariableAssignment "\%([!$][[:alnum:]_-]\+\s*\)\@<=:" nextgroup=sassCssAttribute skipwhite
+
+syn match sassFunction "\<\%(rgb\|rgba\|red\|green\|blue\|mix\)\>(\@=" contained
+syn match sassFunction "\<\%(hsl\|hsla\|hue\|saturation\|lightness\|adjust-hue\|lighten\|darken\|saturate\|desaturate\|grayscale\|complement\)\>(\@=" contained
+syn match sassFunction "\<\%(alpha\|opacity\|rgba\|opacify\|fade-in\|transparentize\|fade-out\)\>(\@=" contained
+syn match sassFunction "\<\%(unquote\|quote\)\>(\@=" contained
+syn match sassFunction "\<\%(percentage\|round\|ceil\|floor\|abs\)\>(\@=" contained
+syn match sassFunction "\<\%(type-of\|unit\|unitless\|comparable\)\>(\@=" contained
+
+syn region sassInterpolation matchgroup=sassInterpolationDelimiter start="#{" end="}" contains=@sassCssAttributes,sassVariable,sassFunction containedin=cssStringQ,cssStringQQ
+
+syn match sassMixinName "[[:alnum:]_-]\+" contained nextgroup=sassCssAttribute
+syn match sassMixin  "^="               nextgroup=sassMixinName
+syn match sassMixin  "^\s*\zs@mixin"    nextgroup=sassMixinName skipwhite
+syn match sassMixing "^\s\+\zs+"        nextgroup=sassMixinName
+syn match sassMixing "^\s\+\zs@include" nextgroup=sassMixinName skipwhite
+syn match sassMixing "\%([{};]\s*\|^\)\@<=@include" nextgroup=sassMixinName skipwhite contained containedin=sassDefinition
+syn match sassExtend "^\s\+\zs@extend"
 
 syn match sassEscape     "^\s*\zs\\"
 syn match sassIdChar     "#[[:alnum:]_-]\@=" nextgroup=sassId
@@ -34,28 +54,34 @@
 " TODO: Attribute namespaces
 " TODO: Arithmetic (including strings and concatenation)
 
-syn region sassInclude start="@import" end=";\|$" contains=cssComment,cssURL,cssUnicodeEscape,cssMediaType
-syn region sassDebugLine matchgroup=sassDebug start="@debug\>" end="$" contains=@sassCssAttributes,sassConstant
-syn region sassControlLine matchgroup=sassControl start="@\%(if\|else\%(\s\+if\)\=\|while\|for\)\>" end="$" contains=sassFor,@sassCssAttributes,sassConstant
+syn region sassInclude start="@import" end=";\|$" contains=scssComment,cssURL,cssUnicodeEscape,cssMediaType
+syn region sassDebugLine end=";\|$" matchgroup=sassDebug start="@debug\>" contains=@sassCssAttributes,sassVariable,sassFunction
+syn region sassWarnLine end=";\|$" matchgroup=sassWarn start="@warn\>" contains=@sassCssAttributes,sassVariable,sassFunction
+syn region sassControlLine matchgroup=sassControl start="@\%(if\|else\%(\s\+if\)\=\|while\|for\)\>" end="[{};]\@=\|$" contains=sassFor,@sassCssAttributes,sassVariable,sassFunction
 syn keyword sassFor from to through contained
 
 syn keyword sassTodo        FIXME NOTE TODO OPTIMIZE XXX contained
-syn region  sassComment     start="^\z(\s*\)//"  end="^\%(\z1 \)\@!" contains=sassTodo
-syn region  sassCssComment  start="^\z(\s*\)/\*" end="^\%(\z1 \)\@!" contains=sassTodo
+syn region  sassComment     start="^\z(\s*\)//"  end="^\%(\z1 \)\@!" contains=sassTodo,@Spell
+syn region  sassCssComment  start="^\z(\s*\)/\*" end="^\%(\z1 \)\@!" contains=sassTodo,@Spell
 
 hi def link sassCssComment              sassComment
 hi def link sassComment                 Comment
-hi def link sassConstant                Identifier
+hi def link sassDefault                 cssImportant
+hi def link sassVariable                Identifier
+hi def link sassFunction                Function
 hi def link sassMixing                  PreProc
 hi def link sassMixin                   PreProc
+hi def link sassExtend                  PreProc
 hi def link sassTodo                    Todo
 hi def link sassInclude                 Include
-hi def link sassDebug                   Debug
+hi def link sassDebug                   sassControl
+hi def link sassWarn                    sassControl
 hi def link sassControl                 PreProc
 hi def link sassFor                     PreProc
 hi def link sassEscape                  Special
 hi def link sassIdChar                  Special
 hi def link sassClassChar               Special
+hi def link sassInterpolationDelimiter  Delimiter
 hi def link sassAmpersand               Character
 hi def link sassId                      Identifier
 hi def link sassClass                   Type
diff --git a/runtime/syntax/scss.vim b/runtime/syntax/scss.vim
new file mode 100644
index 0000000..6fb9691
--- /dev/null
+++ b/runtime/syntax/scss.vim
@@ -0,0 +1,20 @@
+" Vim syntax file
+" Language:	SCSS
+" Maintainer:	Tim Pope <vimNOSPAM@tpope.org>
+" Filenames:	*.scss
+" Last Change:	2010 Jul 26
+
+if exists("b:current_syntax")
+  finish
+endif
+
+runtime! syntax/sass.vim
+
+syn match scssComment "//.*" contains=sassTodo,@Spell
+syn region scssComment start="/\*" end="\*/" contains=sassTodo,@Spell
+
+hi def link scssComment sassComment
+
+let b:current_syntax = "scss"
+
+" vim:set sw=2: