.menu{
    text-align: center;
    justify-content: space-between;
    padding: 2%;
    background-color: gray;
}

a{
    margin: 1%;
}

.obsah{
    margin-top: 2%;
    text-align: center;
    background-color: gray;
    width: 100%;
    padding-bottom: 15%;
}

.sloupce{
    justify-content: space-between;
    display: flex;
}

.sloupec1{
    background-color: gray;
    margin-top: 3%;
    width: 31%;
    padding-bottom: 15%;
    text-align: center;
}

.sloupec2{
    background-color: gray;
    margin-top: 3%;
    width: 31%;
    padding-bottom: 15%;
    text-align: center;
}

.sloupec3{
    background-color: gray;
    margin-top: 3%;
    width: 31%;
    padding-bottom: 15%;
    text-align: center;
}

.spodek{
    text-align: center;
    margin-top: 3%;
    background-color: gray;
    padding: 2%;
}