body {
    background-color: lightblue;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    font-size: 1em;
    line-height: 1.5;
    margin: 0;
}

header {
    padding: 3em 2em;
    background-image: url(images/hlavicka.jpg);
    background-color: lightskyblue;
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
}

h1 {
    font-size: 3em;
    text-align: center;
    margin: 0;
    color: white;
    text-shadow: 0 0.1em 0.1em rgba(0, 0, 0, 0.5);
}

.menu_hlv {
    margin: 0;
    padding: 0.2em;
    text-align: center;
    background-color: royalblue;
}

.menu_hlv li{
    display: inline-block;
}

.menu_hlv a {
    border-radius: 0.5em;
    display: inline-block;
    color: white;
    text-decoration: none;
    padding: 0.3em 1em;
    text-shadow: 1px 1px 0 black;
}

.menu_hlv a:hover,
.menu_hlv a:focus
 {
    background-color: black;
}

section {
    padding: 2em 5%;
}

.kontakty {
    color: black;
    background-color: gray;
    padding: 1em;
}

footer p {
    color:white;
    font-size: 1em;
    text-align: center;
    background-color: dimgrey;
    margin: 0;
    padding: 2em;
}