【正文】 ft or top side. mozboxsizingThis property determines how the width and height of the element is calculated. It affects the width and height properties.contentbox: The width and height properties specify the size of the element including the padding. borderbox: The width and height properties specify the size of the element including the padding and border. paddingbox: The width and height properties specify the size of the element. The padding, border and margin are added outside of this size. mozimageregionFor elements that have an image, this property sets the area of the image that is used. You can set multiple elements to use the same image but use a different region of the image, reducing the amount of memory required. You can change this property to simulate animation. The syntax is similar to the clip property. All four values are relative to the upper left corner of the image. mozimageregion: rect(top, right, bottom, left)。 has been proposed for CSS3.ignore: The element does not accept the keyboard focus and will be skipped in the tab order. normal: The element can accept the keyboard focus. mozuserinputThis can be used to indicate whether the value of the element can be modifed. This mainly applies to textboxes.disabled: The user cannot edit the value of the textbox. The user may still select text in the textbox. enabled: The user can edit the value of the textbox. mozuserselectUsed to indicate whether the text of the element can be selected. This doesn39。 Determines how the backgroundposition property is determined. This property is similar to the CSS3 backgroundorigin property.content: The position is relative to the content. border: The position is relative to the border. padding: The position is relative to the padding. mozbindingUsed to specify an XBL binding to use for the element. The property should be a URL of an XBL file containing the binding. The URL should contain an anchor to point to a specific binding with the XBL file, referenced by its id attribute.mozborderbottomcolorsSets the border colors for the bottom edge. It should be set to a list of colors. When an element has a border that is larger than a single pixel, each line of pixels uses the next color specified in this property. This eliminates the need for nested boxes. If the border is wider than the number of colors specified for this property, the remaining part of the border is the color specified by the border property.mozborderleftcolorsSets the border colors for the bottom edge. See the mozbordercolorsbottom property for more information.mozborderradiusThis property can be used to give borders rounded corners. This should be set to a numeric value indicating the amount of rounding to use. You must use a unit (usually px for pixels). A higher number makes the border rounder.mozborderradiusbottomleftSets the rounding of the lower left corner of the border.mozborderradiusbottomrightSets the rounding of the lower right corner of the border.mozborderradiustopleftSets the rounding of the upper left corner of the border.mozborderradiustoprightSets the rounding of the upper right corner of the border.mozborderrightcolorsSets the border colors for the right edge.