body{
	

     background-image: url("../imagenes/sis.jpg" );
     background-position : center; 
	background-repeat : no-repeat; 
	background-attachment : fixed; 

	color: gray ;
	text-align: justify;

}

h1, h2, h3, p, ol{
	width: 70%;
	margin-left: auto;
	margin-right: auto;
	color: black;
	background-color: #DEF9FA;
}

img, iframe{
	width: 20%;
	margin-left: auto;
	margin-right: auto;
	display: block;
}

p{
	text-align: justify;
	color: black;
}

table{
	width: 75%;
	margin-right: auto;
	margin-left: auto;
	background-color:black;
	color: gray;
}

table, th, td,li{
	border: 3px solid #DEF9FA;
	border-collapse: collapse;
}
table td{
	padding: 20px;
}


p.parrafosGCS{
	border-left-style: solid;
	border-left-color: gray;
	border-left-width: 3px;
	padding: 10px;
background-color: #DEF9FA;
	
	

		


}


h2.titulo2GCS{
	border: 1px solid black;
	border-radius: 6px;
	padding: 15px;


}

div#menuPrincipal{

	width: 60%;

	margin-left: auto;
	margin-right: auto;
	border:1px solid black;
	padding: 50px;
	margin-bottom: 20px;
	background-color: #DEF9FA;




}


a{

	border: 2xpx solid red;
	padding: 10px;
	margin-right: 10px;
	border-radius: 7px;



}

a:link{
	text-decoration: yellow;
	align-content: center;
}

a:hover{
	background-color: blue;   
	align-content: center;


img { 

	display: block;
	width: 30%;
	position: fixed;
	top: 400px;
	left: 200px;



 }