How to disable zoom and scale animation

Go to Theme Settings->General and copy paste the following code to the custom css field;

To disable only scale animation;

.ext-link img:hover {
    transform: scale(1.4) rotate(0deg) !important;
    -webkit-transform: scale(1.4) rotate(0deg) !important;
    -ms-transform: scale(1.4) rotate(0deg) !important;
}

To disable zoom and scale animation;

.ext-link img:hover {
    transform: scale(1) rotate(0deg) !important;
    -webkit-transform: scale(1) rotate(0deg) !important;
    -ms-transform: scale(1) rotate(0deg) !important;
}