body{
    margin: 0;
    padding: 0;
    display: flex;
    min-height: 100vh;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    
    
    /*background-image: url(../img/fondo_contacto.jpg);
    background-size: 100vw 100vh;
    background-repeat: no-repeat;
    background-attachment: fixed;*/
}



#imagen {
    background: url('img/esquemaCamaraFria.jpg') no-repeat;
}


principal{
    margin-top: 70px;
    display: grid;
    height: 100vh;
    grid-gap: 2px;
    width:100%;

    grid-template-columns: 50% 50%;
}

principal2{
    margin-top: 70px;
    display: grid;
    height: 150vh;
    width: 100%;

    grid-template-columns: 1fr;
}


principal > * {
    /*background-color: #E2E3E2; /*fondo gris*/
    font-family: sans-serif;
    display: flex;
    justify-content: left;
    padding: 10px;
    margin-top: 20px; 
    
    
    /*align-items: center;*/
    display: block;
    
}




titulo {
  font-size: 65px;
  color: #808182;
  float:center;
}

demo {
  font-size: 25px;
}

a {
  color: #D89C05;
}

p {
  font-size: 30px;
  color: #4C7DD8;
}

p2 {
  font-size: 16px;
}


footer{
    align-self: flex-end;
    background: green;
    color: #fff;
    line-height: 3;
    text-align: center;
    width: 100%;
    margin-bottom: 10px;
}




input {
    width: 80%;
    margin-bottom: 20px;
    margin-left: 20px;
    padding: 7px;
    box-sizing: border-box;
    font-size: 17px;
    /*border: none;*/
    border: 1px solid #B6B7B8;
}


#boton{
    background: #2D86FC;
    color: #fff;
    text-align: center;
}


#boton:hover{
    cursor: pointer;
    background: #0359CA;
}



@media (max-width:600px) { 
    principal {
        width: 100%;
        display: grid;
        grid-template-columns: 1fr;
        grid-template-rows: 1fr 1fr;
    }
    
    
    


}