<body class="text-center">
<div class="container mb-4">
<form type="search" method="GET" actopm="." >
{{filter.form|bootstrap}}
<button type="submit" class="btn btn-primary">Buscar</button>
</form>
<div class="input-group mb-3">
<div class="input-group-prepend">
<span class="input-group-text">%</span>
</div>
<input type="text" class="form-control" name="porcentaje" id="precioinp" aria-label="Porcentaje">
<div class="input-group-append">
<span class="input-group-text">.00</span>
</div>
<button type="button" id="btnAplicar" class="btn btn-primary">Aplicar</button>
</div>
</div>
</body>