.revealDirLeft:after {
    animation-name: blockSlideToLeft;
}
@keyframes blockSlideToLeft {
	0%{left:auto;right:0;width:0%}
	45%{left:auto;right:0;width:100%}
	55%{left:0;right:auto;width:100%}
	to{left:0;right:auto;width:0%}
}