.card-header{text-align: left;}

.card-header button{
   background:none;
   color:#fff;
   white-space: normal
}

.card-header button:hover{
   color: #efefef;
   text-decoration: none;
}

.card-header button:focus{
   box-shadow: none;
   text-decoration: none
}

.question-mark {
   border-radius: 50%;
   padding: 2px 7px;
   border: 2px solid #fff;
   text-align: center;
   margin-right: 5px;
}