css样式之border-image

border-image-source 属性设置边框的图片的路径[none | <image>]

 div {
   border: 20px solid #000;
   border-image-source: url(border.png);
}

border-image-slice 属性图片边框向内偏移[ <number> | <percentage> ](1,4) ?fill

 div {
   border: 20px solid #000;
   border-image-source: url(border.png);
   border-image-slice: 27,27,27,27;
}

border-image-width 属性设置图片边框的宽度[ <length>|<number> |<percentage> | auto](1,4)

 div {
   border: 20px solid #000;
   border-image-source: url(border.png);
   border-image-slice: 27,27,27,27;
   border-image-width: 27px 1 10% 27px;
}

border-image-outset 属性设置边框图像区域超出边框的量[ <length>|<number> ](1,4)

 div {
   border: 20px solid #000;
   border-image-source: url(border.png);
   border-image-slice: 27,27,27,27;
   border-image-width: 27px 1 10% 27px;
   border-image-outset: 27px 27px 27px 27px;
}

border-image-repeat 属性设置图像边框是否应平铺(repeated)、铺满(rounded)或拉伸(stretched)(1,2)

 div {
   border: 20px solid #000;
   border-image-source: url(border.png);
   border-image-slice: 27,27,27,27;
   border-image-width: 27px 1 10% 27px;
   border-image-outset: 27px 27px 27px 27px;
   border-image-repeat: rounded;
   border-image: url(border.png) 27  rounded;
}