body{
    background-color:white;
}

#glavni{
    width: 960px;
    border: dashed red 5px;
    margin: auto;
}

div div{
    margin: 10px auto;
    height: 70px;
    width: 500px;
    border: 5px rgb(0, 0, 0) solid;
    padding: 20px;
}