Answers for "animation hover bootstrap"

bootstrap card hover effect

.card{
  border-radius: 4px;
  background: #fff;
  box-shadow: 0 6px 10px rgba(0,0,0,.08), 0 0 6px rgba(0,0,0,.05);
  transition: .3s transform cubic-bezier(.155,1.105,.295,1.12),.3s box-shadow,.3s -webkit-transform cubic-bezier(.155,1.105,.295,1.12);
  padding: 14px 80px 18px 36px;
  cursor: pointer;
}

.card:hover{
  transform: scale(1.05);
  box-shadow: 0 10px 20px rgba(0,0,0,.12), 0 4px 8px rgba(0,0,0,.06);
}

bootstrap 4 class for hover

<div class="view overlay">
    <img src="https://mdbootstrap.com/img/Photos/Horizontal/City/6-col/img%20(3).jpg" class="img-fluid " alt="">
     <div class="mask rgba-red-strong">

    </div>
</div>