Pure CSS Overlay over Image | Backround-color

Darkening, bluring, tinting the image behind the text will make the text much easier to see !

- Powered by CSS ::after pseudo-element
- Powered by CSS attribut : background-color

.hero {
	display: flex;
	align-items: center;
	justify-content: center;
	position: relative;
	margin: 0 auto 20px;
	width: 100vw;
	max-width: 1280px;
	min-height: 300px;
	height: auto;
	max-height: 720px;
	color: #fff;
	text-align: center;
}

.overlay-black:after {
	content: "";
	position: absolute;
	width: 100%;
	height: 100%;
	background-color: rgba(0, 0, 0, .5);
	z-index: 0;
}

.overlay-red:after {
	content: "";
	position: absolute;
	width: 100%;
	height: 100%;
	background-color: rgba(255, 0, 0, .5);
	z-index: 0;
}

.overlay-yellow:after {
	content: "";
	position: absolute;
	width: 100%;
	height: 100%;
	background-color: rgba(255, 215, 15, .5);
	z-index: 0;
}

.overlay-green:after {
	content: "";
	position: absolute;
	width: 100%;
	height: 100%;
	background-color: rgba(0, 255, 0, .5);
	z-index: 0;
}

.overlay-fade:after {
	content: "";
	position: absolute;
	width: 100%;
	height: 100%;
	background: linear-gradient(180deg, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0) 50%, rgba(0, 0, 0, .5) 75%, rgba(0, 0, 0, .8) 100% );
	z-index: 0;
}