I am attempting to place two buttons on either side of the search field, so I implemented the following code:
<div id="fixtures-filter">
<div class="input-group-btn">
<div class="input-group-prepend"><button type="button" class="btn btn-light" aria-expanded="false" id="countries-btn">Filters</button></div>
<div class="app-search">
<div class="input-group"><input type="text" class="form-control" placeholder="Search..."><span class="mdi mdi-magnify"></span>
<div class="input-group-append"><button type="button" class="btn btn-light" data-toggle="modal" data-target="#fixtures-filter-modal">Search</button> </div>
</div>
</div>
</div>
</div>
the output appears quite unusual: