实现如图效果的背景图

将背景切片为head、body、foot三个png

head.png高度73px

body.png高度1px

foot.png高度69px

/*背景图片*/
    background: url(~@/assets/head.png) no-repeat center
        top/100% 73px,
      url(~@/assets/body.png) no-repeat center 73px/100%
        calc(100% - 73px - 69px),
      url(~@/assets/foot.png) no-repeat center bottom/100%
        69px;