body{font-size:15px}.overlay{position:fixed;top:0;left:0;width:100%;height:100%;background-color:rgba(0,0,0,.1);display:flex;justify-content:center;align-items:center;z-index:1000}.spinner{width:40px;height:40px;border-radius:50%;border:4px solid rgba(0,0,0,.1);border-left-color:#007bff;animation:spin 1s linear infinite;margin:20px auto}@keyframes spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}footer{border-top:1px solid #e5e5e5;background-color:#fc0;width:100%;margin-left:auto;margin-right:auto;text-align:center;padding:5px 0 1px;a{color:fff!important;text-decoration:none}}