html, body {
  --background-color:         #ECF0F1;
  --background-color-active:  #D5D7D7;
  --main-color:               #2C3E50;
  --primary-color:            #2F80ED;
  --primary-color-active:     #2B77DB;
  --primary-color-disabled:   #D5D7D7;
  --secondary-color:          #27AE60;
  --secondary-color-active:   #219752;
  --secondary-color-disabled: #D5D7D7;
  --selected-color:           #27AE60;
  --selected-color-active:    #219752;
  --selected-color-disabled:  #D5D7D7;

  --ok-color:                 #2F80ED;
  --warning-color:            #F39C12;
  --warning-color-active:     #E74C3C;
  --error-color:              #e52322;

  --background-color:         #FFFFFF;
  --background-color-active:  #D5D7D7;
  --main-color:               #2C3E50;
  --primary-color:            #2F80ED;
  --primary-color-active:     #2B77DB;
  --primary-color-disabled:   #D5D7D7;
  --secondary-color:          #27AE60;
  --secondary-color-active:   #219752;
  --secondary-color-disabled: #D5D7D7;
  --selected-color:           #27AE60;
  --selected-color-active:    #219752;
  --selected-color-disabled:  #D5D7D7;

  --ok-color:                 #2F80ED;
  --warning-color:            #F39C12;
  --warning-color-active:     #E74C3C;
  --error-color:              #e52322;

}

body::before {
  content: "DEMO  DEMO";
  position: fixed;
  top: 50%;
  height: 1.1em;
  margin-top: -.5em;
  left: -50%;
  width: 200%;
  font-size: 10em;
  font-weight: bold;
  text-align: center;
  opacity: .15;
  color: #333333;
  transform: rotate(-33deg);
  border: .05em solid;
  pointer-events: none;
  z-index: 1000;
}