body {
   
  font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
  }
  
    header {
  background-image: url("../image/VivaMexicoHeartGIF.gif");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  height: 250px;

  display: flex;
  justify-content: center;
  align-items: center;
}

header h1 {
  color: white;
  font-size: 40px;
  background-color: rgba(0,0,0,0.5);
  padding: 10px 20px;
  border-radius: 10px;
}

  nav {
    background-color: #f4f4f4;
    padding: 10px;
  }
  nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    text-align: center;
  }
  nav ul li {
    display: inline;
    margin-right: 20px;
  }
  nav ul li a {
    color: #0547fd;
    text-decoration: none;
  }
  nav ul li a:hover {
    color: #777;
  }
  section {
    padding: 20px;
  }
  footer {
    background-color: #044186;
    color: #fff;
    padding: 20px;
    text-align: center;
  }
.bandera{
background: linear-gradient(to right, green 33%, white 33%, white 66%, red 66%);
}
  header, nav, div, footer {
    position: relative;
    z-index: 1;
}
footer{
background-image: url("../image/mexico\ bandera\ footer.gif");
background-size: cover;
background-position: center;
height:150px;
text-align:center;
color:white;
padding-top:10px;
}
.textofooter{
color:white;
font-size:20px;

background-color: rgba(0,0,0,0.5);

display:inline-block;
padding:8px 20px;

border-radius:10px;
}
footer{
text-align:center;
}
div{
width:33%;
display:inline-block;
text-align:center;
}
h3{
font-size: 28px;
text-align: center;
margin-top:10px;
}