body {
    background-color: #780a25;
    font-size: 15px;
    margin: 0;
}
.container {
    width: 70%;
    margin: 0 auto 68px auto;
    background-color: #780a25;
    padding: 32px 60px;
    border-radius: 20px;
    }
nav {
    /*background-image:url('images/backgroud.jpg');*/
    padding: 12px 20px;
    width: 100%;
}
p {
    color: white;
    font-size: 22px;
    line-height: 24px;
    font-family: "Times New Roman", Times, serif;;
    padding: 12px 20px;
}
h1 {
    color: white;
    line-height: 40px;
    font-family: "Times New Roman", Times, serif;;
    padding: 12px 20px;
    }

h2 {
    color: white;
    line-height: 20px;
    font-family: "Times New Roman", Times, serif;;
    padding: 12px 20px;
    }

.pozadi-obrazek {
    background-image:url('images/pozadi2.jpg');
    width: 1800px;
}


.nav {
    list-style-type: none;
    padding: 0;
    margin: 0;
    text-align: center;
}
.nav li {
    background-color: #780a25;
    color: white;
    display: inline-block;
    max-width: 180px;
    border-radius: 8px;     
    margin-right: 8px;    
}
.nav li:hover {
    background-color: #cc8196;
}
.nav li a {
    color: whitesmoke;
    text-decoration: none;
    display: inline-block;
    padding: 12px 18px;
    text-transform: uppercase;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

@media (max-width: 1400px ) {
    .pozadi-obrazek {
        width: 80%;
    }

    img {
        width: 100%;
    }
}



@media (max-width: 900px ) {
    p {
        font-size: 20px;
    }

    iframe {
        height: 60%;
        width: 80%;
    }
}


@media (max-width: 400px ) {
    .pozadi-obrazek {
        width: 90%;
        margin-left: 10px;
    }

    p {
        padding: 5px 5px 5px 5px;
    }
    img {
        width: 120%;
    }

    h1, h2 {
        font-size: 20px;
    }
   
    iframe {
        height: 200px;
        width: 250px;
    }
    
    a {
       border: 5px;
    }

    .nav li  {
       margin: 5px;
    }
}