CSS оживляет границу
.borderAnimation{
transition: border-width 0.2s linear;
}
.borderAnimation:hover{
border: 2px solid black;
}
JoaoGMR
.borderAnimation{
transition: border-width 0.2s linear;
}
.borderAnimation:hover{
border: 2px solid black;
}
box-shadow: 0 0 5px <your color>, 0 0 5px <your color>, 0 0 10px <your color>;