* {
    margin: 0;
    padding: 0;
}

body {
    background-color: #eee;
    background-image: url(../img/roklinka.jpg);
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
}
nav {
    width: 100%;
    height: 100px;
    background-color: #fff;
}
ul li {
    list-style: none;
    line-height: 100px;
    float: left;
} 
ul li a {
    display: block;
    text-decoration: none;
    font-size: 20px;
    font-family: system-ui;
    color: #1e1e1e;
    padding: 0 20px;
}
ul li a:hover{
    color: #c05959;
}
.box{
    width: 65%;
    padding: 1em;
    background-color: #074f57;
    color:white;
    border-radius: 1em;
    box-shadow: .5em .5em .5em lightblack; 
    margin: 5% auto 10% auto; 
}
.box p{
    margin: 1em;
}
.box h1{
    margin-bottom: 10px;
    text-align: center;
}
.spolecenstvo, .dve-veze, .navrat-krale{
    margin: 20px 0px 20px 0px;
    display: inline-block;
}
.nadpis{
    margin-bottom: 100px;
    font-size: large;    
}
.nadpis h1{
    font-size: 2em;
}
img {
    border-radius: 3em;
    display: inline-block;
}
.spolecenstvo-text, .dveveze-text, .navratkrale-text{
    font-size: larger; 
}
.obrazky{
    margin-left: 20px;
    text-align: center;
}
@media screen and (max-width:600px){
    ul li a{
        font-size: 13.4px;
    }
    img{
        width: 270px;
        height: 400px;
    }
    .nadpis{
        margin-bottom: 50px;
    }
}
@media screen and (max-width:470px) {
    .text{
        font-size: small;
    }
    .obrazky h2{
        font-size: 1.5em;
    }
    img{
        width: 240px;
        height: 360px;
    }
}
@media screen and (max-width:400px) {
    img{
        width: 200px;
        height: 320px;
        margin-left: auto;
        margin-right: auto;   
    }  
      ul li a{
        font-size: 10px;
    }
}
@media screen and (max-width: 330px){
    img{
        width: 160px;
        height: 280px;
    }
}
@media screen and (min-width: 2000px) {
    ul li a{
        font-size: 30px;
    }
    img {
        width: 450px;
        height: 600px;
    }
    .text{
        text-align: center;
        display: block;
    }
    .spolecenstvo-text,.dveveze-text,.navratkrale-text{
        font-size: 1.6em;
    }
    .nadpis{
        font-size: 2em;
    }
    .obrazky h2{
        font-size: 2em;
    }
}