/* 效果一：彩带 
.card-info-avatar:hover {
  background: url(https://cdn.jsdelivr.net/gh/rigodlee/BLOGCDN/img/H3342af90d24b4d62b9bbfec9688ccc25M.gif);
}*/

/* 效果二：花 */
.card-info-avatar:hover {
  background: url(https://cdn.jsdelivr.net/gh/rigodlee/BLOGCDN/img/20200530181856.gif);
}