body {
  font-family: "Helvetica", sans-serif;
  background-color: #fdfdfd;
}

body, html, #content {
  height: 100%;
  width: 100%;
  margin: 0px;
  box-sizing: border-box;
  color: #444;
}

h1, h2, h3 {
  font-weight: 300;
}

#content {
  padding: 10px;
  text-align: center;
}

#instructions {
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

#color-container {
  min-height: 50px;
  height: 50%;
  position: relative;
}

#submit-button,
#next-button {
  width: 150px;
  height: 50px;
  line-height: 50px;
  font-size: 16pt;
  background-color: #ffffff;
  color: #444;
  border: 1px solid #444;
  outline: none;
  margin: 0px;
  padding: 0px;
  box-shadow: 0px 2px 7px -4px #666;
  cursor: pointer;
}

#submit-button:hover,
#next-button:hover {
  border: 1px solid #444;
  background-color: #f8f8f8;
}

#submit-button:active,
#next-button:active {
  background-color: #eee;
  box-shadow: 0px 2px 7px -4px #666 inset;

}

#submit-button.disabled {
  box-shadow: none;
  border: 1px #999999 dashed;
  color: #999999;
  cursor: default;
}

#submit-button.disabled:hover {
  background-color: #ffffff;
}

#submit-button.disabled:active {
  background-color: #ffffff;
}

.block, .outerBlock {
  width: 60px;
  height: 60px;
  position: absolute;
  top: 50%;
  left: 50%;
  margin-top: -30px;
  box-shadow: 1px 2px 5px -2px #666;
  cursor: -webkit-grab;
  cursor: grab;
}

.block:not(.dragging) {
  transition: 0.25s ease;
}

.block.dragging {
  cursor: -webkit-grabbing;
  cursor: grabbing;
  z-index: 2;
}

.outerBlock {
  background-image: url( "images/transparent.jpg" );
  background-size: 10px 10px;
}

.outerBlock:hover {
  background: #fff;
}

.outerBlock > .block {
  margin: 0px;
  top: 0px;
  left: 0px;
  pointer-events: none;
}

#nextSetOverlay {
  background: rgba(252, 252, 252, 0.75);
  position: absolute;
  top: 0px;
  left: 0px;
  width: 100%;
  height: 100%;
  visibility: hidden;
}

#nextSetOverlay > .modal {
  width: 400px;
  height: 200px;
  background: #fff;
  text-align: center;
  position: absolute;
  left: 50%;
  top: 50%;
  margin-top: -100px;
  margin-left: -200px;
  box-shadow: 1px 2px 8px -3px #666;
  padding: 25px;
  box-sizing: border-box;
}

#nextSetOverlay > .modal > h2 {
  margin-top: 0px;
}

#next-button {
  position: absolute;
  bottom: 25px;
  left: 50%;
  margin-left: -75px;
}

#no-more-message {
  color: #bbbbbb;
  position: relative;
  top: 50%;
  margin-top: -2em;
}