.parent {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    grid-template-rows: repeat(5, 1fr);
    grid-column-gap: 0px;
    grid-row-gap: 0px;
}

/*Estilos del Encabezado*/
.div1 {
    grid-area: 1 / 1 / 2 / 6;

}

/*Estilos del contenido*/
.div2 {
    grid-area: 2 / 1 / 5 / 6;
    background: linear-gradient(to right, #13747d, #fcf7c5);
    padding: 30px;
    margin: 0;
    
}

/*Estilos del pie de pagina*/
.div3 {
    grid-area: 5 / 1 / 6 / 6;
    background-color: #333;
    color: #FFF;
    padding: 10px;
    text-align: center;
    clear: both;
}

ul{
    list-style-type: none;
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: #333;
}

li{
    float: left;
}

li a{
    display: block;
    color: white;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
}

li a:hover:not(.active) {
    background-color: #111;
}

.active {
    background-color: #fcf7c5;
}

h1 {
    background-color: #333;
    padding: 10px;
    margin: 0;
    color: #fcf7c5;
}

h1 a{
    color: #fcf7c5;
    text-decoration: none;
}

h3 {
    background-color: #333;
    padding: 10px;
    margin: 0;
    color: #fcf7c5;
}

small a{
    color: #fcf7c5;
    text-decoration: none;
}