.tabulka {
    overflow-x: auto;
    }
    table{
        border-collapse: collapse;
        margin: auto;
        width: 75%;
    }
    tr {
        width: 60px;
        height: 30px;
    }
    tr:nth-child(2n) {
        background-color: lightgray;
    }
    tr:nth-child(2n+1){
        background-color: lightskyblue;
    }
    tr:hover:not(:first-child){background-color: black;
        color: white;
    }
    td{
        width: 60px;
        height: 30px;
        text-align: center;
    }
    th{
        width: 100px;
        height: 50px;
        text-align: center;
    }