h1.welcome {
  font-weight: 400;
  text-transform: uppercase;
}
h2.register {
  color: #caa95a;
  font-weight: 400;
  margin-top: 0;
  text-transform: uppercase;
}
.main .container .flex {
  display: block;
}
.main .container .flex .login-box {
  padding: 20px;
  text-align: left;
}
.main .container .flex .login-box form label:first-of-type {
  margin-top: 0;
}
.main .container .flex .login-box form input[type="submit"] {
  width: 100%;
}
.main .container .flex .login-box form .button-login {
  background-color: #555555;
  margin-bottom: 15px;
  margin-top: 10px;
  width: 100%;
}
.main .container .flex .login-box form .button-login:hover {
  background-color: #484848;
}
.main .container .flex .welcome-box {
  padding: 20px;
  text-align: center;
}
.main .container .flex .register-box {
  padding: 20px;
  text-align: center;
}
.main .container .flex .register-box .button {
  margin-bottom: 20px;
  width: 90%;
}
@media only screen and (min-width: 840px) {
  .main .container .flex {
    display: -webkit-box;
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;
  }
  .main .container .flex .flex-box {
    width: 33.3%;
  }
  .main .container .flex .login-box {
    padding: 20px 20px 20px 0;
  }
  .main .container .flex .welcome-box {
    padding: 20px;
  }
  .main .container .flex .register-box {
    padding: 20px 0 20px 20px;
  }
}