*{
    box-sizing: border-box;
}

body{
    background-color: whitesmoke;
    text-align: center;
}

.div{
    flex-wrap: wrap;
}

.prvi{
    background-color: tomato;
    flex-basis: 250px;
    width: 250px;
}


.drugi{
    background-color: cadetblue;
    flex-basis: 250px;
    width: 25;
    
}

.treci{
    background-color: coral;
}

.cetvrti{
    background-color: cornflowerblue;
}

.peti{
    background-color: crimson;
}