.person-thumb img:hover {
  -webkit-filter: grayscale(0%);
  -webkit-transition: .5s ease-in-out;
  -moz-filter: grayscale(0%);
  -moz-transition: .5s ease-in-out;
  -o-filter: grayscale(0%);
  -o-transition: .5s ease-in-out;
  filter: grayscale(0%);
} 

.person-thumb img {
  -webkit-filter: grayscale(100%);
  -webkit-transition: .5s ease-in-out;
  -moz-filter: grayscale(100%); 
  -moz-transition: .5s ease-in-out;
  -o-filter: grayscale(100%); 
  -o-transition: .5s ease-in-out;
  filter: grayscale(100%);
}
.team-single {
    
}

.image-card {
 position: relative;
}

.person-thumb img {
  -webkit-transition: 0.4s ease;
  transition: 0.4s ease;
}

.team-single:hover .person-thumb img {
  -webkit-transform: scale(1.08);
  transform: scale(1.08);
}