*{
    margin: 0;
    padding: 0;
    font-family: 'Open Sans', sans-serif;
    font-weight: 400;
    list-style: none;
    box-sizing: border-box;
    text-decoration: none;  
}

body,html{
    width: 100%;
    
}

body {
    background: #3b413c;
    margin-bottom: 90px;
   
}

header{
    display: flex;
    text-align: center;
    
    
}


header nav {
    text-align: center;
    display:flex;
    flex-direction: row-reverse;
    background: #3b413c;
    margin:20px auto;
    overflow: hidden;
   
  
}

header nav a{
    color: #fff;
    padding: 30px;
    justify-content: center;
    text-decoration: none;
    background:#3b413c;
    border-left: solid 1px #4a4a4a;
    
    
}

header nav a:first-child{
    border-left:none
}

header nav a:hover {
    background: #9db5b2;
}

@media screen and (max-width:800px) {
    header  {
        margin:0px;
        width: 100%;      
    }
    
 header nav {
        display: flex;
        flex-direction: column;
        margin: 0px;
        width: 100%;
        height: 55%;
        padding: 10px;
    }
    
 header nav a{
        border-bottom: solid 1px #4a4a4a;
        border-left: none;
    }
    
 header nav a:last-child{
        border-bottom:none;
    }



.botonera {
    display: flex;
    flex-wrap: wrap;
    flex-direction: row;
    justify-content: space-around;
    align-items: flex-end;
    align-content: flex-end;
    background-color: whitesmoke;
    padding: 10px;
    position: fixed;
    bottom: 0;
    right: 0;
    width: 100%;
}



footer{
    position:inherit;
    margin: 0px 20px;
    width: 90%;
    color: white;
    text-align:center;
    font-size: 8px;
}