#contenedor {
    width: 100%;
}
#menu {
    height: 40px;
    width: 100%;
    text-align: center;
    background-color: lightblue;
}

#slices {
    height: 380px;
    width: 100%;
    background-image: url('ruta/de/tu/imagen.jpg');
    background-size: cover;
}

#cuerpo {
    height: 1510px;
    background-color: lightblue;
}

#footer {
    height: 50px;
    width: 100%;
}

#MenuBar1 {
    list-style: none;
    padding-top: 5px;
    margin: 0;
    display: flex;
    justify-content: center;
}
.imagen-deporte {
    width: 100px;
    height: 100px;
}