.sponsor_cloud {
	display:flex;
	justify-content:space-evenly;
	align-items:center;
	align-content:flex-start;
	flex-flow:row wrap;

	max-width:1300px;
	margin:20px auto;
}


.sponsor_cloud img {
	flex:1 1 100%;
	height:auto;
	padding:10px;
	transition:opacity .25s;
	margin:0 auto;
}

.sponsor_cloud a img:hover {
	opacity: .65;
}

.tier_largest .logo_rect {
	max-width:220px;
}
.tier_largest .logo_square {
	max-width:180px;
}
.tier_largest .logo_long {
	max-width:400px;
	transform:scale(1.05);
}


.tier_med_1 .logo_tall {
	max-width:190px;
}

.tier_med_1 .logo_rect {
	max-width:170px;

}
.tier_med_1 .logo_wide_rect {
	max-width:210px;
}
.tier_med_1 .logo_square {
	max-width:130px;

}
.tier_med_1 .logo_long {
	max-width:450px;

}


.tier_small_1 .logo_rect {
	max-width:160px;
}
.tier_small_1 .logo_wide_rect {
	max-width:180px;
}
.tier_small_1 .logo_square {
	max-width:120px;
}
.tier_small_1 .logo_long {
	max-width:180px;
}

.tier_small_1 .logo_long_2 {
	max-width:200px;
}

.tier_media .logo_rect {
	max-width:110px;
}
.tier_media .logo_wide_rect {
	max-width:120px;

}
.tier_media .logo_square {
	max-width:100px;
}
.tier_media .logo_long {
	max-width:160px;
}

.tier_presenters {
	border-top:1px solid #CCC;
	padding-top:20px;
}

.tier_presenters .logo_square {
	max-width:155px;
}
.tier_presenters .logo_rect {
	max-width:170px;
}



@media all and (max-width:500px) {

	.tier_largest .logo_rect {
		max-width:190px;
	}
	.tier_largest .logo_square {
		max-width:150px;
	}
	.tier_largest .logo_long {
		max-width:250px;
	}


	.tier_med_1 .logo_rect {
		max-width:130px;
	}
	.tier_med_1 .logo_wide_rect {
		max-width:190px;
	}
	.tier_med_1 .logo_square {
		max-width:100px;
	}
	.tier_med_1 .logo_long {
		max-width:200px;
	}


	.tier_small_1 .logo_rect {
		max-width:130px;
	}
	.tier_small_1 .logo_wide_rect {
		max-width:150px;
	}
	.tier_small_1 .logo_square {
		max-width:90px;
	}
	.tier_small_1 .logo_long {
		max-width:160px;
	}

	.tier_small_1 .logo_long_2 {
		max-width:150px;
	}


	.tier_media .logo_rect {
		max-width:120px;
	}
	.tier_media .logo_wide_rect {
		max-width:120px;
	}
	.tier_media .logo_square {
		max-width:100px;
	}
	.tier_media .logo_long {
		max-width:150px;
	}

}