.blok1{
    display: block;
    width: 300px;
    background-color: aquamarine;
}
.blok2{
    display: inline; 
    background-color: bisque;
}
.skriven{
    display: none;
}
.nevidljiv{
    visibility: hidden;
}
.referentni{
    background-color: brown;
}