body{
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    height: 100vh;
    width: 100vw;
}
#title{
    font-size: 5em;
}
#input-num{
    width: 500px;
    height: 50px;
    border: 2px solid black;
    border-radius: 25px;
    font-size: 25px;
    padding-left: 50px;
}
#submit{
    margin-top: 30px;
    width: 300px;
    height: 50px;
    border-radius: 25px;
    color: white;
    background-color: black;
    font-size: 20px;
    font-weight: 500;
    font-family: sans-serif;
    transition: 0.15s ease-in;
    
}
#submit:hover{
    background-color: rgba(0, 0, 0, 0.551);
}
#submit:active{
    width: 290px;
    height: 46px;
}