a img:hover {
	opacity:0.6;
}


@media all and (min-width: 100px) {
	.responsive_tableau img {
		width:750;
		margin-right:10;
		margin-left:10;
		margin-bottom:10;
	}

@media all and (min-width: 1200px) {
	.responsive_tableau img {
		width:900;
		margin-right:10;
		margin-left:10;
		margin-bottom:10;
	}

@media all and (min-width: 1300px) {
	.responsive_tableau img {
		width:1000;
		margin-right:10;
		margin-left:10;
		margin-bottom:10;
	}


@media all and (min-width: 1400px) {
	.responsive_tableau img {
		width:1100;
		margin-right:10;
		margin-left:10;
		margin-bottom:10;
	}


@media all and (min-width: 1500px) {
	.responsive_tableau img {
		width:1200;
		margin-right:10;
		margin-left:10;
		margin-bottom:10;
	}


@media all and (min-width: 1600px) {
	.responsive_tableau img {
		width:1300;
		margin-right:10;
		margin-left:10;
		margin-bottom:10;
	}

}

/*
@media all and (min-width: 1700px) {
	.responsive_tableau img {
		width:450;
		margin-right:20;
		margin-bottom:10;
	}
}


@media all and (min-width: 1800px) {
	.responsive_tableau img {
		width:490;
		margin-right:20;
		margin-bottom:10;
	}
}


@media all and (min-width: 2000px) {
	.responsive_tableau img {
		width:550;
		margin-right:20;
		margin-bottom:10;
	}
}