body{
    margin: 0;
    padding: 0;
}

.obal{

}

.hlavicka{
    width: 100%;
    background-color: cadetblue;
    padding: 5%;
    text-align: center;
    margin-bottom: 1%;
}

.obsah{

}

.levySloupec{
    width: 30%;
    background-color: rgb(216, 193, 62);
    padding: 5%;
    text-align: center;
    margin: 1%;
    float: left;
}

.pravySloupec{
    width: 40%;
    background-color: red;
    padding: 5%;
    text-align: center;
    margin: 1%;
    float: left;
}

.paticka{
    width: 100%;
    background-color: green;
    padding: 5%;
    text-align: center;
    clear: both;
}