background 简写
background: #ffffff url('https://profile-avatar.csdnimg.cn/b9abdd57de464582860bf8ade52373b6_misnice.jpg') center center / 100% no-repeat;
效果如图:
background 简写
background: #ffffff url('https://profile-avatar.csdnimg.cn/b9abdd57de464582860bf8ade52373b6_misnice.jpg') center center / 100% no-repeat;
效果如图: