body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
            line-height: 1.6;
            color: #222;
            max-width: 40rem;
            padding: 1rem;
            margin: auto;
            background: rgba(255, 255, 255, 0.3);
        }
        
        img {
	    opacity: 0.85;
            max-width: 100%;
            max-height: 300px;
        }
        
        a {
            color: #2ECC40;
        }
        
        h1,
        h2,
        strong {
            margin: 0.25rem;
            text-align: center;
        }
        
        * {
            box-sizing: border-box;
        }
        /* Create two equal columns that floats next to each other */
        
        .column {
            float: left;
            width: 50%;
            padding: 10px;
            height: 100px;
        }
	.light {
          background-color: rgba(170, 170, 170, 0.8);
	}
	.dark {
	  background-color:rgba(187, 187, 187, 0.8);
	}

        /* Clear floats after the columns */
        
        .row:after {
            content: "";
            display: table;
            clear: both;
        }
        
        .head {
            text-align: center;
        }
        /* unvisited link */
        a:link {
          color: red;
        }

        /* visited link */
        a:visited {
          color: green;
        }

        /* mouse over link */
        a:hover {
          color: hotpink;
        }

        /* selected link */
        a:active {
          color: blue;
        }
      html { 
        background: url(/guadalajara_hero-1280x720.jpeg) no-repeat center center fixed; 
        -webkit-background-size: cover;
        -moz-background-size: cover;
        -o-background-size: cover;
        background-size: cover;
      }