html {
  box-sizing: border-box;
}
*, *:before, *:after {
  box-sizing: inherit;
}
body {
  background-color: #252525;
  color: #ffffff;
  min-height: 100%;
}
h1, h3 {
  text-align: center;
  margin-top: 1.5rem;
}
div.container {
  width: 98%;
     margin: 20px auto;
     background-color: #414141;
     border-radius: 5px;
     padding-bottom: 15px;
}
@media only screen and (min-width: 768px){
  div.container{
    width: 90%;
    max-width: 1000px;
  }
}
p {
  text-align: justify;
}
p span.nombre {
  color: #FF0000;
}
p span.correo {
  color: #FF0000;
}
button.btn {
  display: block;
  margin: auto;
}
a {
  text-decoration: none;
  color: inherit;
}
/* Logo */
.logo {
  width: 90%;
  display: block;
  margin: 0 auto;
}
@media only screen and (min-width: 768px){
  .logo{
    width: 40%;
  }
}
/* footer */
p.copyright{
  background-color: #2e2e2e;
  padding: 10px 0;
  color: white;
  margin: 0;
  text-align: center;
  margin: 20px 0 0 0;
  text-align: center;
  border-radius: 0  0 5px 5px;
}