a,
button {
    -webkit-transition: all 0.5s ease 0s;
    -moz-transition: all 0.5s ease 0s;
    -o-transition: all 0.5s ease 0s;
    -ms-transition: all 0.5s ease 0s;
    transition: all 0.5s ease 0s;
    text-decoration: none;
}