body       { background-color: 3366cc ;
             background-image: url(objetos/fondonuevo.jpg) ;
             background-repeat: no-repeat ; 
             background-position: center center }

img {border-style: none ; margin: 534px 0px 0px 330px }

#entrar      { font:20px calibri ; text-align:center ; margin-top:550px  }

a {color:blue; text-decoration:none ; display: block } 
a:link {} 
a:visited {} 
a:hover {color:blue ; text-decoration:underline ;} 
a:active {}