body{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}
button{
    font-size: 24px;
    padding: 10px 20px;
    background-color: #000000;
    color: white;
    border: none;
    cursor: pointer;
    transition: background-color 0.6s ease;
    border-radius: 10px;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
}

button:hover{
    background-color: #444444;
}

button:focus{
    outline-color: #000000;
    outline-style: solid;
    outline-width: 2px;
    outline-offset: 2px;
}