Bootstrap 4 modal width responsive code example
Example: modal full width boostrap
<div class="modal fade">
<div class="modal-dialog modal-xxl">
<div class="modal-content">
<div class="modal-header" style="cursor:move;">
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
</div>
<div class="modal-body" style="height:80vh;overflow:scroll">
</div>
<div class="modal-footer">
<button type="button" class="btn btn-primary submitsearch" data-dismiss="modal">Search</button>
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
</div>
</div>
</div>
</div>