Classe Animação CSS

@mixin anima-slow {
    -o-transition: all 0.3s linear;
    -moz-transition: all 0.3s linear;
    -khtml-transition: all 0.3s linear;
    -webkit-transition: all 0.3s linear;
    -ms-transition: all 0.3s linear;
    transition: all 0.3s linear;
}

@mixin anima-normal {
    -o-transition: all 0.2s linear;
    -moz-transition: all 0.2s linear;
    -khtml-transition: all 0.2s linear;
    -webkit-transition: all 0.2s linear;
    -ms-transition: all 0.2s linear;
    transition: all 0.2s linear;
}

@mixin anima-fast {
    -o-transition: all 0.1s linear;
    -moz-transition: all 0.1s linear;
    -khtml-transition: all 0.1s linear;
    -webkit-transition: all 0.1s linear;
    -ms-transition: all 0.1s linear;
    transition: all 0.1s linear;
}