.modal-80 .modal-dialog {
  width: 80%; /* or whatever you wish */
}
.modal-90 .modal-dialog {
  width: 90%; /* or whatever you wish */
}
.modal-95 .modal-dialog {
  width: 95%; /* or whatever you wish */
}
.modal-100 .modal-dialog {
  width: 100%; /* or whatever you wish */
}
.modal-70 .modal-dialog {
  width: 70%; /* or whatever you wish */
}
.modal-60 .modal-dialog {
  width: 60%; /* or whatever you wish */
}
.modal-50 .modal-dialog {
  width: 50%; /* or whatever you wish */
}
.modal-40 .modal-dialog {
  width: 40%; /* or whatever you wish */
}