body {
    margin-top: 70px;
    margin-left: 50px;
    margin-right: 50px;
    margin-bottom: 50px;
    background: #E59866 url(../images/background.jpg) repeat;
    color: black;
   /* align-content: center;*/
}


nav{
    position:fixed;
    background: rgba(0,0,0,0.6);
    color:#FFF;
    text-align: center;
    top: 0px;
    left: 0px;
    width: 100%;
    margin: 0;
    height: 5%;
/*    font-variant-caps: all-small-caps;*/
    letter-spacing: 0.2em;
}
nav a {
    padding: 0 30px;
    color: white;
    text-decoration: none;
}
nav a:hover{
    background: gray;
    padding-top: 100%;
    padding-bottom: 14px;
    color: skyblue;
}
nav p {
    position: relative;
    margin-top: 1em;
}


header {
    background: #7DCDEE url(../images/background2.jpg) repeat;
    font-family: "Arial";
    
    text-align: left;
    /*border-radius: 20px;*/
    padding: 1px;
    padding-left: 50px;
    /*margin: 47px; */
    /*margin: 70px; */
}

header h1 {
    font-variant: small-caps;
    font-size:  250%;
    color: white;
}

h2 {
    color: white;
    background: #7DCDEE url(../images/background2.jpg) repeat; 
    padding-left: 30px;
    padding-top: 10px;
    padding-bottom: 10px;
    padding-right: 10px;
}


h3 
{
    color: white;
    background: #7DCDEE
    padding-left: 30px;
    padding-top: 10px;
    padding-bottom: 10px;
    padding-right: 10px;
}

#operaciones {
    padding-bottom: 30px;
}

footer {
    background-color: rgba(0,0,0,0.6);
    color:#FFF;
    height: 3em;
    position: fixed;
    bottom: 0px;
    left: 0px;
    width: 100%;
    text-decoration: none;
    text-align: center;
    letter-spacing: 0.2em;
}