style.css

*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body{
    height: 100%;
    background-image: url(fundo.jpg);
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    min-height: 100vh;
    background-color: #111;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.text{
    display: flex;
    position: absolute;
    text-align: center;
    justify-content: center;
    top: 30px;
    color: blue;
    font-size: 40px;
}

.container{
    width: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    
}

input{
    height: 80px;
    font-size: 50px;
    width: 100%;
    text-align: center;
    margin: 0 4px;
}

input:disabled{
    background-color: white;
}

button{
    width: 80px;
    height: 100%;
    background-color: blue;
    color: white;
    font-size: 50px;
    border: 0;
    cursor: pointer;
    transition: background .25s ease-in-out;
    border-radius: 50px;
}

#rodape {
    background-color: black;
    width: 100%;
    position: absolute;
    text-align: center;
    bottom: 0;
    font-size: 20px;
    color: white;
    }

.link{
    text-align: center;
    color: white;
}

.link:hover{
    color: rgb(59, 148, 221);
}