*{
    box-sizing: border-box;
}

ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: rgb(0, 0, 0);
  }

  li {
    float: left;
    font-weight: bold;
    font-size: x-large;
    border-right: 1px solid white;
    
  }

  li a {
    display: block;
    color: rgb(255, 255, 255);
    text-align: center;
    padding: 16px;
    text-decoration: none;
  }

  li a:hover {
    background-color: rgb(13, 155, 24);
  }

header {
    background-color: grey;
}

h1 {
    margin-top: 0%;
    padding-top: 5%;
    padding-left: 3%;
}
main {
  	display: flex;
}

footer {
    background-color: gray;
    padding: 5%;
    width: 100%;
    text-align: right;
}


.kategorie {
    display: block;
    text-align: left;
    width: 25%;
    padding: 5%;
}

.nadpis {
  width: 50%;
  margin: 2%;
}

.dodatek {
  width: 25%;
  margin: 2%;
}

h2 {
    text-align: center;
}

.random_text {
    text-align: center;
}