body, html {
    height: 100%;
    margin: 0;
}

.bg {
    /* The image used */
    background-image: url("vizitka.jpg");

    /* Full height */
    height: 100%; 

    /* Center and scale the image nicely */
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

.pomoc {
    position: relative;
    float: right;
	  margin: 10px 15px 0 0;
}

.pomoc-txt {
	position: absolute; 
	top: 22.5px; 
	left: 50px; 
	display: block; 
	cursor: pointer; 
	color: white; 
	font-family: Arial; 
	font-size: 12px; 
	line-height: 1.2em; 
	font-weight: bold; 
	text-align: center; 
	width: 65px;
}