header{
    position: fixed;
    background-color:gray;
    text-align:;
    font-size-adjust: auto;
    width: 96%;
    height: 75px;
    color: blue;
    line-height: 2;
    letter-spacing: 3px;
    word-spacing:20px;
    border-bottom-color:black;
    border-bottom-width: thin;
    border-bottom-style:ridge;
    margin-left: 15px;
    margin-right:;
}
header a{
    text-align: center;
    text-decoration:none;
    color: darkgray;
    word-spacing:150px;
}
header input{
    width: auto;
    height: 40px;
    background-color:black;
    font-size:16px;
    color:dodgerblue;
}
/*nav{
    text-align: center;
    top: 5px;
    width: auto;
    margin-left: 5px;
    margin-right: 5px;
    height: 20px;
    font-size-adjust: auto;
    word-spacing:5px;
    color: deepskyblue;
    background-color: black;
}
nav a{
    text-decoration: none;
    color: aliceblue;    
    }*/
a:hover{
    color: deepskyblue;
}  
section{
    /*background-color: black;
     background-size: 100% 100%;
    background: no repeat;*/
     width: 25%;
    height: 74%;
    background: rgba(0,0,0,0.2);
    border-radius: 10px;
    padding: 2px 20px;
    margin-bottom: 10px;
    float: left;
    top:10px;
    margin-left: 15px;
    margin-right: 5px;
    margin-bottom: 10px;
    width: 70%;
    height: auto;
    font-family:sans-serif;
    font-size: 13px;
    line-height: 2;
}
section td{
    
    padding: 5px 8px;
    width:50%;
    color: darkblue;
    text-align:justify;
    
    
}
section img{
    box-shadow: 4px 5px 6px #aaa;
    transition: transform 0.5s;
}
section img:hover{
    transform: scale(1.1);
}

aside{
    position: relative;
    background-color: white;
    color: black;
    width: auto;
    margin-left: 75%;
    margin-right: 5px;
    top: auto;
    
}

#cabecera img{
    align-content: center;
    width: 100%;
}

 article{
    font-size: 18px;
    text-align: justify;
    float: right;
    width: 50%;
    height: 320px;
    background-color: white;
    color: black;
}
footer{
    position:fixed;
    bottom: 0;
    width: auto;
    height: 30px;
    font-size-adjust: auto;
    background-color: black;
    color: deepskyblue;
    line-height: 35px;
    font-size: 20px;
    margin-bottom: 2px;
    letter-spacing: 2px;
}