body {
    position: relative;
    font-family: 'Norican', cursive;
	margin: 0;
}
.wrap-btn {
    text-align: center;
    width: 100%;
}
.btn {
    display: inline-block;
    padding: 4px 45px 5px;
    border-radius: 6px;
    color: #c50000;
    background: hsla(0, 0%, 100%, 0.9);
    text-decoration: none;
    letter-spacing: 3px;
    margin: 0 25px 30px;
    border: 1px solid;
    box-shadow: 2px 2px 6px rgba(0, 0, 0, 0.3);
    transition: all 0.4s;
}
.btn:hover {
    color: white;
    background: #c50000;
    border: 1px solid #c50000;    
}
@media (min-width: 768px){
	body {
		background-image: url(../img/svatba.jpg);
		width: 100vw;
		height: 100vh;
		background-position: center;
		background-size: cover;
	}
	img.mob-img {
		display: none;
	}
	.wrap-btn {
		position: absolute;
		bottom: 15px;
	}
	body {
		font-size: 24px;		
	}
}
@media (max-width: 767px){
	body {
		font-size: 24px;
		background: url(../img/bg-mobil.jpg);
		min-height: 100vh;
	}
	img.mob-img {
		max-width: 100%;
		position: relative;
		z-index: 1;
	}
	.btn {
		display: block;
		padding: 4px 15px 5px;
		border-radius: 6px;
		margin: 0 25px 20px;
		background: white;
	}
	.wrap-btn {
		margin-top: -40px;
		position: relative;
		background: url(../img/bg-mobil.jpg);
		padding: 50px 0 10px;
		background-size: contain;
	}
}