css3图像边框:border-image
https://blog.csdn.net/qq_35393869/article/details/90519066?utm_medium=distribute.pc_relevant.none-task-blog-2%7Edefault%7EBlogCommendFromMachineLearnPai2%7Edefault-1.control&depth_1-utm_source=distribute.pc_relevant.none-task-blog-2%7Edefault%7EBlogCommendFromMachineLearnPai2%7Edefault-1.control
border-style: solid;
border- 24px;
box-sizing: border-box;
border-image: url(./img/backgroundKpiIndex.jpg) 43 43 round;
background-color: rgb(212, 143, 53);
background: