@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;700&display=swap');

body{
    padding: 20px;
}

div.tabelle{
    display: table;
    border-collapse: collapse;
    font-family: 'Roboto', sans-serif;
    font-size: 13px;
}

div.tr{
    display: table-row;
}

.tb-head{
    background-color: #a5a5a5;
    color: white;
    display: table-cell;
    border: 1px solid black;
    padding: 3px 5px 3px 5px;
}

.tb-zelle{
    background-color: #ececec;
    display: table-cell;
    border: 1px solid black;
    padding: 3px 5px 3px 5px;
}

h1{
    font-family: 'Roboto', sans-serif;
    font-size: 700;
}

button{
      border:0;
      outline:none;
      border-radius:0;
      padding:15px;
      font-size:1rem;
      font-weight:700;
      text-transform:uppercase;
      letter-spacing:.1em;
      background: #1ab188;
      color: white;
      transition:all.5s ease;
      -webkit-appearance: none;
    cursor: pointer;
}

button:hover{
    background-color: #138a6a;
}