* {
    margin: 0;
    padding: 0;
    }

.main { 
    width: 100%; 
    height: 1200px;  
    background-image: linear-gradient(rgba(0, 0, 255, 0.5), rgba(255, 255, 0, 0.5)),                  
    url("../img/gdl.webp");
    background-position: center;
    background-repeat: no-repeat;
    background-size: contein;
    }

.contenedor-1 {
    width: 100%;
    height: 100vh;  
    }

.menu {
    display: flex;
    overflow: hidden;
    text-decoration:none; 
    }

.cabecera img {
    width:100px;
    border-radius: 30%;
}

.cabecera nav {
	display: flex;
	justify-content: space-around;
	aling-items: center;
	padding: 10px;
	}

.cabecera nav ul {
	list-style: none;
	display: flex;
	justify-content: space-between;
	}

a {
	text-decoration: none;
	font-size: 16px;
	color: black;
	padding: 20px 20px;
	display: block;
	}

a:hover {
	background: white;
	}

.cabecera nav ul li ul {
	display flex;
	flex-direction: column;
	}

.cabecera nav ul li ul {
	position: absolute;
	background: white;
	}

.cabecera nav ul li ul  li {
	width: 180px;	
	position: relative;
	}

.cabecera nav ul li ul  li ul {
	top: 0;
	left: 180px;
	position: absolute;
	}

.cabecera nav ul li ul {
	display: none;
	}

.cabecera nav ul li:hover > ul {
	display: block;
	}

<!---- Cuerpo -->
.cuerpo {
	width:100%;
	}

.cuerpo .tabla {
	justify-content: center;
	aling-items: center;
	}

.cuerpo a td img {
	  width: 100%; 

	}

<!---- Pie de Pagina -->

.pie-pagina {
	width:100%;
	}

.pie-pagina .grupo-1 {
	width: 100%;
	max-width: 1200px;
	margin: auto;
	display: flex;
	grid-template-columns: repeat(1, 1fr);
	grid-gap: 55px;
	paddind: 45px 0px;
	justify-content: center;
	}

.pie-pagina .grupo-1 .box figure {
	width: 100%;
	height: 100%;
	display: flex;
	justify-content: center;
	align-items: center;
	}

.pie-pagina .grupo-1 .box figure img{
	width: 75px;	
	}

.pie-pagina .grupo-1 .box h2 {
	color: black;
	margin-bottom: 25px;
	font-size: 16px;
	justify-content: center;
	display: flex;
	}

.pie-pagina .grupo-1 .box p {
	color: #efefef;
	margin-bottom: 10px;
	}

.pie-pagina .grupo-1 .red-social a {	
	display: inline-block;
	text-decoration: none;
	width: 20px;
	height: 20px;
	line-height: 20px;
	color: #fff;
	margin-right: 4px;
	background-color: #0d2033;
	text-align: center;
	transition: all 300ms ease;
	border-radius: 30%;
	}

.pie-pagina .grupo-1 .red-social a:hover {
	color:  aqua;
	}

.pie-pagina .grupo-2 {
	background-color: #0a1a2a;
	padding: 15px 10px;
	text-align: center;
	color: #fff;
	}

@media screen and (max-width:800px) {
	.pie-pagina .grupo-1 {
	width: 90%;
	grid-template-columns: repeat(1, 1fr);
	grid-gap: 30px;
	paddind: 25px 0px;
	}
	}