html {
  display: block;
}

header {
  
  background-color:;
  border-color:;
  width: 75%;
  text-align: center;
  padding: 15px 10px;
  height: auto;
  color: rgb(15, 13, 13);
  font-size: 16px;
  line-height: 17.5px;
  font-family: Many Wealz;
  display:block;
  clear: both;
}

footer {
  margin-top:30px;
}

body {
  background-image: url("portada.jpg");
  display: block;
  margin-left: 20px;
  margin-right: 20px;
  color: #222;
  line-height: 40px;
  font-size: 15px;
  font-weight: 300;
  font-family: Helvetica;  
}

nav {
  margin: 10px 20px 10px 15px;
  background-color:;
  border: 1px solid:;
  border-radius: 4px;
  color: #7B68EE;
  overflow: hidden;
  width: 25%;
  display: block;
}

  nav ul {
    margin: 0;
    padding: 0;
  }

    nav ul li {
      display: inline-block;
      list-style-type: none; 
    }

      nav > ul > li > a {
        color: rgb(10, 10, 10);
        display: block;
        line-height: 40px;
        padding: 0 24px;
		text-decoration: none;
      }
	  
	    nav > ul > li:hover {
          background-color: #eeeded;
        }

        nav > ul > li:hover > a {
          color: rgb( 255, 255, 255 );
        }
      
      nav > ul > li > div {
        background-color: #f5e9e9;
		line-height: 25px;
        border-top: 0;
        border-radius: 0 0 4px 4px;
        display: none;
        margin: 0;
        opacity: 0;
        position: absolute;
        width: 100px;
        visibility: hidden;
      }

        nav > ul > li:hover > div {
          display: block;
          opacity: 1;
          visibility: visible;
        }

          nav > ul > li > div ul > li {
            display: block;
          }

            nav > ul > li > div ul > li > a {
              color: rgb(16, 16, 16);
              display: block;
              padding: 12px 24px;
            }

              nav > ul > li > div ul > li:hover > a {
                background-color: rgba( 255, 255, 255, 0.1);
              }

section {
	float: left;
	display:block;
	width: 70%;
}

aside {
  float: right;
  display: block;
  width: 75%;
}

h1 {
	margin-left: 40px;
	color: #222;
	font-size: 25px;
	font-weight: bold;
	font-family: Helvetica;
	display: block;  
}

p {
  margin-left: 40px;	
  line-height: 40%;
}

pre {
  margin-left: 25px;	
  line-height: 40%;
  font-size: 15px;
  font-weight: 300;
  font-family: Helvetica;   
}