body{
    
background-image: url(../images/fondo_3.png);
   background-repeat: no-repeat;
    background-size:  100% auto; 
    background-attachment: fixed;
    margin:0;   
    font-family:sans-serif;
    
        
}

form{
    
    width:80%;
    margin: auto;
    margin-top: 5%;
    background: rgba(0,0,0,0.4);
    padding: 10px 20px;
    box-sizing: border-box;
    position:relative; 
    border-radius: 20px; 
    
}
mapa{
   
    margin: auto;
    margin-top: 50%;
    box-sizing: border-box;
    position:relative; 
    border-radius: 20px; 
    
}
h1{
   padding:1;
    line-height: 1;
    text-align: center;
    color: #fff;
    font-family: impact;
    font-size: 80px;
}
h2{
    padding:1px;
    color:#fff;
    text-align: center;
    margin: 0;
    font-size: 30px;

    
}
@media screen and (max-width:900px){
    
    form{
        width:100%;
    }
    
    body{background-image: url(../images/fondo_h.png);
   background-repeat:repeat;
    }
    
}