div.container {
    width: 100%;
    padding-left: 10px;
    padding-right: 10px;
    border: 1px solid gray;
}

header {
    padding: 0.10em;
    background-color: #063f9c;
	  color: yellow;
    clear: left;
    text-align: center;
    font-size: 1em;
}

footer {
    padding: 0.10em;
    background-color: #063f9c;
	  color: yellow;
    clear: left;
    text-align: center;
    font-size: 1em;
}



.overlay {
    height: 100%;
    width: 0;
    position: fixed;
    z-index: 1;
    top: 0;
    left: 0;
    background-color: rgb(251, 240, 150);
    background-color: rgba(251, 240, 150, 0.8);
    overflow-x: hidden;
    transition: 0.5s;
  }
  
  .overlay-content {
    position: relative;
    top: 25%;
    width: 100%;
    text-align: center;
    margin-top: 20px;
  }
  
  .overlay a {
    padding: 8px;
    text-decoration: none;
    font-size: 18px;
    color: #2d0ff0;
    display: block;
    transition: 0.3s;
  }
  
  .overlay a:hover, .overlay a:focus {
    color: #994f4f;
  }
  
  .overlay .closebtn {
    position: absolute;
    top: 20px;
    right: 45px;
    font-size: 48px;
  }
  
  @media screen and (max-height: 450px) {
    .overlay a {font-size: 20px}
    .overlay .closebtn {
    font-size: 40px;
    top: 15px;
    right: 35px;
    }
  }
  h9 {
    background-color: blue;
    color: yellow;
    font-size: xx-large;
  }
  h8 {
     color: black;
     font-size: xx-large;
     text-align: center;
  }
  h7 {
     color: black;
     font-size: 1.2em;
     text-align: center;
     font-weight: bold; 
     color: yellow;
     background-color: #f18973;
  }