h1,h3{
    text-align: center;
}
p{
    margin: auto;
    text-align: center;
    width: 500px;
    font-size: 250%;
}
h1{
    font-size: 500%;
}
h3{
    font-size: 200%;
}
body{
    background-image: url(./obrazky/poozadi.jpg);
    background-size: cover;
}
#back{
    padding-bottom: 10px;
    color: aliceblue;
    background-color: rgba(0, 0, 0, 0.54);
}
a{
    background-color: wheat;
}