hr {
      height: 2px;
      border-color: gray;
    }


ul {
     width:100%;
     background:yellow;
     height:25px;
     text-align:center;
  }


h1 {
        font-family: Courier;
        font-size: 34px;
  }


h2 {
        font-family: Arial;
        font-size: 16px;
  }


a {
        font-family: Courier;
        font-size: 20px;
  }




  #cabecera header { 
             width: 400px;
             height: 215px;
             margin: 0px;
             padding: 0px;      
             }

    
    
#button {
           padding: 0;
         }

      
#button li {
         display:inline-block;
         margin-right:10px;
         font-family: Courier;
         color:red;
        }


   
#aside1 {
             float: right;
             width: 60%  
           }


#aside2 {
             float: right;
             width: 40%  
        
           }
    
#contenido {
            width: 40%; 
            float: left;
            padding: 5px 15px;
            margin: 0px 5px 4.5px 4.5px;
            background-color:white;
            color:black; 
            font-family: Arial, Helvetica, Sans-serif;
            text-align:left;
            font-size: 12px;
        }


#contenido1 {
            width: 30%; 
            float: left;
            padding: 5px 15px;
            margin: 0px 5px 4.5px 4.5px;
            background-color:white;
            color:black; 
            font-family: Arial, Helvetica, Sans-serif;
            text-align:left;
            font-size: 18px;
        }



    figure{
          margin: 0;
      }


     footer { 
            width: 100%;
            margin: 0px 5px 5px 5px;
            background-color:#40FF00;
            text-align: center;
            color:black; 
            font-family: Arial, Helvetica, Sans-serif; 
            font-size: 12px;
            clear: both;
            padding: 5px 15px;
        }