header
{
position: relative;
height: 100vh;
width: 100%;
overflow: hidden;
}
	header img
	{
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	width: 100%;
	filter: brightness(55%);
	z-index: -1;
	}

 	header h1
	{
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	width: 100%;
	color: #FFFFFF;
    font-size: 60px;
    font-weight: 500;
    font-family: 'Montserrat',sans-serif;
    text-transform: uppercase;
    margin: 0;
    text-align: center;
    padding: 20px 0;
    letter-spacing: 2.5px;
    text-shadow: 0px 0px 10px rgb(0 0 0 / 30%);
	}
@media screen and (max-width: 900px)
{
	header img
	{
	height: 100%;
	width: 100%;
	}
}
@media screen and (max-width: 800px)
{
	header img
	{
	height: 100%;
	width: auto;
	}
}
@media screen and (max-width: 400px)
{

 	header h1
	{
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	width: 100%;
	font-size: 45px;
	}
}