.card-header{transition:.3s}.card-body{height:0;transition:.3s;min-height:0!important;padding-top:0;padding-bottom:0}.expanded{min-height:200px!important;padding-top:10px;padding-bottom:10px}#content-container{margin:0;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}