.profile_img
{
   width: 120px;
   margin-bottom: 10px;
}
.profile_img img
{
   border-radius: 100%;
   background-color: red;
}
.profile_img:hover img
{
   background-color: black;
   animation-name: profile_rotation;
   animation-duration: 2s;
   animation-iteration-count: infinite;
   animation-timing-function:cubic-bezier(0.175, 0.885, 0.32, 1.275);
   animation-fill-mode: backwards;
}

@keyframes profile_rotation
{
   0%{transform: rotate(0deg);}
   25%{transform: rotate(7deg);}
   75%{transform: rotate(-7deg);}
   100%{transform: rotate(0deg);}
}