Box-shadow

Box-shadow, one of CSS3′s best new features

 Box-shadow

Shadow-outer

#example1 {
-moz-box-shadow: 10px 10px 5px #888;
-webkit-box-shadow: 10px 10px 5px #888;
box-shadow: 10px 10px 5px #888;
}

This property will form the box shadow outside. And it will works on Firefox, Safari/Chrome, Opera and IE9.

Examples:

Example A shows a shadow offset to the left and top by 5px:

#Example_A {
-moz-box-shadow: -5px -5px #888;
-webkit-box-shadow: -5px -5px #888;
box-shadow: -5px -5px #888;
}

Example B shows the same shadow with a blur distance of 5px:

#Example_B {
-moz-box-shadow: -5px -5px 5px #888;
-webkit-box-shadow: -5px -5px 5px #888;
box-shadow: -5px -5px 5px #888;
}

Example C shows the same shadow with a spread distance of 5px:

#Example_C {
-moz-box-shadow: -5px -5px 0 5px #888;
-webkit-box-shadow: -5px -5px 0 5px#888;
box-shadow: -5px -5px 0 5px #888;
}

Example D shows the same shadow with both a blur distance of 5px and a spread distance of 5px:

#Example_D {
-moz-box-shadow: -5px -5px 5px 5px #888;
-webkit-box-shadow: -5px -5px 5px 5px#888;
box-shadow: -5px -5px 5px 5px #888;
}

Example E shows a shadow with no offset and a blur distance of 5px:

#Example_E {
-moz-box-shadow: 0 0 5px #888;
-webkit-box-shadow: 0 0 5px#888;
box-shadow: 0 0 5px #888;
}

Example F shows a shadow with no offset and both a blur distance of 5px and a spread distance of 5px:

#Example_F {
-moz-box-shadow: 0 0 5px 5px #888;
-webkit-box-shadow: 0 0 5px 5px#888;
box-shadow: 0 0 5px 5px #888;
}

Creating an inner shadow with the ‘inset’ keyword

 An optional ‘inset‘ keyword can be supplied, preceding the length and color values. If present, this keyword causes the shadow to be drawn inside the element. According to the specification:

An inner box-shadow casts a shadow as if everything outside the padding edge were opaque. The inner shadow is drawn inside the padding edge only: it is clipped outside the padding box of the element.

#Example_G {
-moz-box-shadow: inset -5px -5px #888;
-webkit-box-shadow: inset -5px -5px #888;
box-shadow: inset -5px -5px #888;
}

Example H shows the same inner shadow with a blur distance of 5px:

#Example_H {
-moz-box-shadow: inset -5px -5px 5px #888;
-webkit-box-shadow: inset -5px -5px 5px #888;
box-shadow: inset -5px -5px 5px #888;
}

Example I shows the same inner shadow with a spread distance of 5px:

#Example_I {
-moz-box-shadow: inset -5px -5px 0 5px #888;
-webkit-box-shadow: inset -5px -5px 0 5px#888;
box-shadow: inset -5px -5px 0 5px #888;
}

Example J shows the same inner shadow with both a blur distance of 5px and a spread distance of 5px:

#Example_J {
-moz-box-shadow: inset -5px -5px 5px 5px #888;
-webkit-box-shadow: inset -5px -5px 5px 5px#888;
box-shadow: inset -5px -5px 5px 5px #888;
}

Example K shows an inner shadow with no offset and a blur distance of 5px:

#Example_K {
-moz-box-shadow: inset 0 0 5px #888;
-webkit-box-shadow: inset 0 0 5px#888;
box-shadow: inset 0 0 5px #888;
}

Example L shows an inner shadow with no offset and both a blur distance of 5px and a spread distance of 5px:
#Example_L {
-moz-box-shadow: inset 0 0 5px 5px #888;
-webkit-box-shadow: inset 0 0 5px 5px#888;
box-shadow: inset 0 0 5px 5px #888;

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