.t-drainage {
  position: fixed;
  z-index: 200;
  display: none; }

.t-drainage.show {
  display: block; }

.t-drainage .t-offset-container {
  position: relative;
  cursor: pointer; }

.t-drainage .t-offset-container img {
  height: 100%;
  width: 100%; }

.t-drainage .hover-bg {
  position: absolute;
  opacity: 0;
  top: 0;
  left: 0; }

.t-drainage.t-origin-center {
  left: 50%;
  top: 50%;
  -webkit-transform: translate(-50%, -50%);
          transform: translate(-50%, -50%);
  -webkit-transform-origin: center center;
          transform-origin: center center; }

.t-drainage.t-origin-topLeft {
  left: 0;
  top: 0; }

.t-drainage.t-origin-topLeft .t-offset-container {
  -webkit-transform-origin: left top;
          transform-origin: left top; }

.t-drainage.t-origin-topRight {
  right: 0;
  top: 0; }

.t-drainage.t-origin-topRight .t-offset-container {
  -webkit-transform-origin: right top;
          transform-origin: right top; }

.t-drainage.t-origin-bottomLeft {
  left: 0;
  bottom: 0; }

.t-drainage.t-origin-bottomLeft .t-offset-container {
  -webkit-transform-origin: left bottom;
          transform-origin: left bottom; }

.t-drainage.t-origin-bottomRight {
  right: 0;
  bottom: 0; }

.t-drainage.t-origin-bottomRight .t-offset-container {
  -webkit-transform-origin: right bottom;
          transform-origin: right bottom; }

.t-drainage .t-offset-container:hover .hover-bg {
  opacity: 1; }

.t-drainage .t-offset-container:hover .hover-bg + .default-bg {
  opacity: 0; }