#alarmlist > .card:nth-child(2n) {
    background-color: #dddddd;
    /*color: blue;*/
}
#msglist > .card:nth-child(2n) {
    background-color: #dddddd;
    /*color: blue;*/
}

/*
.modal{
    display: block !important; /* I added this to see the modal, you don't need this */
}
*/
/* Important part */
.modal-dialog{
    overflow-y: initial !important
}
.modal-body{
    height: 400px;
    overflow-y: auto;
}
.mybadge{
   background:red;
   color:white;
   position:absolute;
   top: -10px;
   left: 15px;
}