panel-custom-blue {
    border-color: #1875b6;
}
.panel-custom-blue > .panel-heading {
    background: #1875b6; 
    color: #ffffff;
    border-color: #1875b6;
}


div.panel-group div.panel-heading a{
     text-decoration:none;display:block;padding:10px 15px;
}

div.panel-group div.panel-heading a:focus,div.panel-group div.panel-heading a:hover{
     box-shadow:0 0 1.5px 1.5px grey
}

div.panel-group .panel-heading{
     padding:0
}