jquery - Issue with hover over image as link -


i trying reach effect once hover on image change color , once click on , redirect requested page ,so use a href. tried css img:hover didn't work. images png . using bootstrap website responsive.

my html: 

    @extends ('master')       @section('content')      <div class="row">          <div class="col-md-12">             <h1 class="text-center">myhero shop</h1> <br><br>         </div>      </div>       <div class="row">           @if ($categories)         @foreach($categories $category)          <div class="col-md-4 col-sm-6 text-center">              <h3 >{{ $category['title'] }} </h3>                <p class><a href="{{ url('shop/'. $category['url']) }}" class="categorieimg"><img width="250" src="{{ asset('images/' . $category['image']) }}"></a></p>               <p>{!! $category['article']!!}</p>            </div>          @endforeach          @else          <div class="col-md-12"> <br><br>             <p class="text-center" style="font-size: 18px"><b>no categories found...</b></p>             <div                  @endif         </div>         @endsection     css:   .categorieimg:hover{     background-color: #080808; } 

img {      -webkit-filter: grayscale(100%);      filter: grayscale(100%);  }    img:hover {      -webkit-filter: none;      filter: none;  }
<a href="https://www.w3schools.com/cssref/css3_pr_filter.asp">    <img src="https://www.w3schools.com/cssref/pineapple.jpg" />  </a>


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