*{
    box-sizing: border-box;
}
body{
    font-family: Arial, Helvetica, sans-serif;
    margin: 0;
    background-color: antiquewhite;
}
.container{
    width: 90%;
    background-color: lightgray;
    margin: 0 auto;
    flex-wrap: wrap;
   
}
header{
    background-color: orange;
    display: flex;
    flex-wrap: wrap;
}
footer{
    background-color: burlywood;
    display: flex;
    flex-wrap: wrap;
    
}
.izbornik ul{
    list-style-type: none;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
}
.izbornik ul li{
    padding: 5px;
    margin: 5px;
    background-color: brown;
    border-radius: 10px;
    flex-basis: 100px;
    flex-grow: 1;
}
.naslov{
    background-color: blueviolet;
    flex-basis: 300px;
    flex-grow: 5;
    flex-shrink: 11;
}
.izbornik{
    background-color: chocolate;
    flex-basis: 300px;
    flex-grow: 1;
    flex-shrink: 1;
}
main{
    flex-wrap: wrap;
    text-align: justify; 
}
article p{
    display: flex;
    flex-basis: 400px;
}
.autor{
    padding: 5px;
    margin: 5px;
    background-color: brown;
    border-radius: 10px;
    flex-basis: 300px;
}
.datum{
    padding: 5px;
    margin: 5px;
    background-color: brown;
    border-radius: 10px;
    flex-basis: 300px;
}
.razred{
    padding: 5px;
    margin: 5px;
    background-color: brown;
    border-radius: 10px;
    flex-basis: 300px;
    flex-grow: 1;
}