html,
body {
  height: 100%;
}

body {
  background-image: url(../imagenes/CITRAS_GENERAL_GRIS.svg);
  display: -ms-flexbox;
  display: flex;
  -ms-flex-align: center;
  align-items: center;
  padding-top: 50px;
  padding-bottom: 40px;
  /*background-color: #FFFFFF;*/
}

.form-signin {
  text-align: center;
  width: 100%;
  max-width: 330px;
  padding: 15px;
  margin: auto;
  background-color: white;
  box-shadow: 2px 2px 5px #999;
}

.form-signin .form-control {
  position: relative;
  box-sizing: border-box;
  height: auto;
  padding: 10px;
  font-size: 16px;
}

.form-signin .form-control:focus {
  z-index: 2;
}

.form-signin input[type="email"] {
  margin-bottom: 10px;
}

.form-signin input[type="password"] {
  margin-bottom: 10px;
}

.signin-container {
  width: 100%;
  height: 90%;
  max-width: 500px;
  min-height: 600px;
  max-height: 600px;
  margin: auto;
  background-color: #00506a;
  border-bottom: 350px solid lightblue;
  box-shadow: 2px 2px 5px #999;
}

.img {
  margin-top: 30px;
  margin-left: 175px;
}

.btn-gray {
  background-color: #63b3ce;
}