#logo{
    height: 11rem;
    width: 11rem;
}

.logo{
    width: 30vw; /* Define a largura desejada para a div */
    height: 30vh; /* Define a altura desejada para a div */
    background-image: url(img/logoiamazul.png); 
    background-attachment: fixed; 
    background-size: auto; 
    -moz-background-size: cover; 
    -webkit-background-size: cover; 
    background-repeat: no-repeat; 
    background-position: top center;
}