body{
   background-image: url(foto100.jpg);
   background-size: 100vw 100vh;
   background-attachment: fixed;
   margin: 0;
   font-family: monospace;
}

form{
   width: 450px;
   margin: auto;
   background: rgba(0, 0, 0, 0.4);
   padding: 10px 20px;
   box-sizing: border-box;
   margin-top: 40px;
   border-radius: 7px;
}

h2{
  color: white;
  text-align: center;
  margin: 0;
  font-size: 30px;
  margin-bottom: 20px;


}

input,textarea, select{
  width: 100%;
  margin-bottom: 20px;
  padding: 7px;
  box-sizing: border-box;
  font-size: 17px;
  border: none;
}



textarea{
    min-height: 100px;
    max-height: 200px;
    max-width: 100%;
}

#boton{
 background-color: blue;
 color: white;
 padding: 20px;
}

#boton:hover{
    cursor: pointer;
}



h1{
 text-align: center;
 font-family:'Courier New', Courier, monospace;
 font-size: 70px;
 color: white;
background: rgba(0, 0, 0, 0.4);
margin-top: 80px;
}


@media (min-width: 768px) {
    .bd-placeholder-img-lg {
      font-size: 3.5rem;
    }
  }