CSS Layer-background-color properties are not supported and rendered effects

Grammar:

layer-background-color:transparent | Color

Parameters:
Transparent: background color transparent
Color: Specifies the color. See Color units and Appendix: color Tables

Description

Sets or retrieves the background color of the entire area of an object.

Example:

div {layer-background-color:transparent;}

CSS Properties Layer-background-image (color) is not supported by Microsoft Internet Explorer 5.0, Microsoft Internet Explorer 5.5, Microsoft Internet Explorer 6.0, Netscape Navigator 6.0, Netscape Navigator 7.0], how to solve, or tell me the reason, the best 2 are taught, thank you

Layer-background-image (color) I didn't see it either.

Correct CSS background picture settings:
Bakcground-image:url (.. Picture path:)
Bakcground-color: #000; Picture Blank part Color
Background-repeat:no-repeat; Images are not repeated, or they can be repeat-x,repeat-y and repeat
Background-position:center Center; The position where the background image appears, an x-axis position, a y-axis position, or "10px 20px", or "10% 20%".

can also be abbreviated: Background:url (.. Path:) No-repeat 10px 20px #000;

css code is the background color