.nadpis{
    background-color: gray;
    padding: 2%;
}

.menu{
}

.menu ul{
    margin: 0;
    padding: 0;
    background-color: black;
    overflow: hidden;
}

.menu ul li{
    list-style-type: none;
    display: inline;
    float: left;
}

.menu ul li a{
    text-decoration: none;
    color: white;
    display: block;
    text-align: center;
    padding: 10px 16px;
}

.menu a:hover{
    background-color: green;
    transition: 1s;
}

.obsahstranky{
    display: flex;
}

.menu2{
    width: 15%;
    padding-right: 1%;
    display: block;
    padding-top: 2%;
}

.menu2 ul{

}
.menu2 ul li{
    list-style-type: none;
    padding-bottom: 12%;
}

.menu2 ul li a{
    
}

.obsah{
    width: 50%;
    
}

.dodatek{
    width: 20%;
    margin-left: 5%;
}

.footer{
    text-align: right;
    background-color: gray;
    padding: 2%;
    margin-top: 10px;
}

@media screen and (max-width:900px){ 
    .nadpis{
        text-align: center;
        padding-left: 0%;
        background-color: gray;
        padding: 1%;
        width: 99%;
    }
    .menu{
        padding-left: 28%;
        background-color: black;
        width: 73%;
    }
    
    .menu ul{
        background-color: black;
    }
    
    .menu ul li{
        list-style-type: none;
        display: inline;
        float: left;
    }
    
    .menu ul li a{
        text-decoration: none;
        color: white;
        text-align: center;
        padding: 10px 16px;
    }

    .menu a:hover{
        transition: none;
        background-color: black;
    }
    .obsahstranky{
        display: block;
        text-align: center;
    }
    .menu2{
        width: 100%;
        display: inline;
        padding-top: 2%;
        overflow: hidden;
        margin: 0;
        padding: 0;
    }
    
    .menu2 ul{
    
    }
    .menu2 ul li{
        list-style-type: none;
        padding-bottom: 1%;
    }
    
    .menu2 ul li a{
        text-align: center;
    }
    
    .obsah{
        text-align: center;
        width: 100%;
    }

    .dodatek{
        text-align: center;
        width: 100%;
        margin: 0;
    }

    .footer{
        text-align: center;
    }
}