Webkit下的appearance属性值

checkbox
radiopush-button
square-button
button
button-bevel
listbox
listitem
menulist
menulist-button
menulist-text
menulist-textfield
scrollbarbutton-up
scrollbarbutton-down
scrollbarbutton-left
scrollbarbutton-right
scrollbartrack-horizontal
scrollbartrack-vertical
scrollbarthumb-horizontal
scrollbarthumb-vertical
scrollbargripper-horizontal
scrollbargripper-vertical
slider-horizontal
slider-vertical
sliderthumb-horizontal
sliderthumb-vertical
caret
searchfield
searchfield-decoration
searchfield-results-decoration
searchfield-results-button
searchfield-cancel-button
textfield
textarea

Mozilla下的appearance属性值

none
button
checkbox
checkbox-container
checkbox-small
dialog
listbox
menuitem
menulist
menulist-button
menulist-textfield
menupopup
progressbar
radio
radio-container
radio-small
resizer
scrollbar
scrollbarbutton-down
scrollbarbutton-left
scrollbarbutton-right
scrollbarbutton-up
scrollbartrack-horizontal
scrollbartrack-vertical
separator
statusbar
tab
tab-left-edge Obsolete
tabpanels
textfield
textfield-multiline
toolbar
toolbarbutton
toolbox
-moz-mac-unified-toolbar
-moz-win-borderless-glass
-moz-win-browsertabbar-toolbox
-moz-win-communications-toolbox
-moz-win-glass
-moz-win-media-toolboxtooltip
treeheadercell
treeheadersortarrow
treeitem
treetwisty
treetwistyopen
treeview
window