CrossBrowser easy CSS3 animation

animation.css

.objeto_animado{
    -webkit-animation-name: escala;
    -webkit-animation-duration: 0.6s;
    -webkit-animation-iteration-count:1;
    -ms-animation-name: escala;
    -ms-animation-duration: 0.6s;
    -ms-animation-iteration-count:1;
    -moz-animation-name: escala;
    -moz-animation-duration: 0.6s;
    -moz-animation-iteration-count:1;
    -o-animation-name: escala;
    -o-animation-duration: 0.6s;
    -o-animation-iteration-count:1;
}
@-webkit-keyframes escala {
    0% {
        -webkit-transform: scale(1);
    }
    100% {
        -webkit-transform: scale(1.2);
    }
}

@-o-keyframes escala {
    0% {
        -o-transform: scale(1);
    }
    100% {
        -o-transform: scale(1.2);
    }
}

@-ms-keyframes escala {
    0% {
        -ms-transform: scale(1);
    }
    100% {
        -ms-transform: scale(1) .2;
    }
}

@-moz-keyframes escala {
    0% {
        -moz-transform: scale(1);
    }
    100% {
        -moz-transform: scale(1.2);
    }
}

@keyframes escala {
    0% {
        transform: scale(1);
    }
    100% {
        transform: scale(1.2);
    }
}