body{
        font-family: helvetica,sans-serif;
        background-image:url(imagens/Iona.jpg);


}
#wrap{
      border-radius:12px;
      background-color:white;
      width: 700px;
      margin:auto;

}
header nav ul {

      list-style: none;
      padding-left: 0px;
      
}
header nav ul li{
	display: inline;
	margin-right: 10px;

}
header nav li a{
	font-size: 18px;
	color: orange;
	text-decoration: none;
}
header nav li a:hover{
    text-decoration: underline;
}