.tabela, th, td{
    border: 3px solid black;
    border-collapse: collapse;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}
    
*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
    
body{
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100px;
    flex-direction: column;
    
}
    
th, td{
    text-align: center;
    height: 60px;
    width: 200px;
    font-size: 20px;
}
    

th{
    height: 50px;
   
}
    
button{
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    font-weight: bolder;
    font-size: 20px;
    height: 50px;
    width: 200px;
    border-radius: 10px;
    border: 4px solid black;
    background-color: lightgreen;
    cursor: pointer;
    margin-top: 50px;
    position: sticky;
    
}

.tabela {
        position: fixed;
        top: 130px;
        left: 437px;
        right: 0;
}