*{
    margin: auto;
    padding: 0;
}
header{
    display: flex;
    background-color: blue;
    color: black;
}

main{
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

#interface{
    width: 300px;
    height: 200px;
    background-color: blue;
    border-radius: 5px;
}

#titulo{
    height: 20px;
    background-color: black;
    color: white;
    border-radius: 5px 5px 0px 0px;
}

#inputs{
    margin-top: 10px;
    margin-left: 25px;
}

button{
    cursor: pointer;
}

#results{
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

#resultado{
    background-color: white;
    border-radius: 5px;
}

#invalido{
    color: red;
}

#valido{
    color: green;
}