drawlines.css

article.js-app img.drawlines_paired {
  box-sizing: border-box;
  border-color: #ff5100;
  border-style: solid;
}

article.js-app img.drawlines_tapntapSelection {
  box-sizing: border-box;
  border: 3px solid #ff5100 !important;
}

article.js-app img.drawlines_soundIcon {
  vertical-align: top;
  background-position: center;
  background-repeat: no-repeat;
  width: 5em;
  height: 5em;
  z-index: 9999;
  position: absolute;
  margin-left: -1em;
  margin-top: -1em;
}

article.js-app img.drawlines_image {
  background: url("blank.gif");
  max-width: 100%;
  max-height: 100%;
  margin: 1em;
  z-index: 2;
  border: solid 1px;
}

.drawlines_imageCell {
  margin: 2px;
}

article.js-app div.drawlines_imageCell {
  border-color: red;
  border-style: solid;
  float: left;
}

article.js-app div.drawlines_imageRow {
  border-color: green;
  border-style: solid;
  display: inline-block;
}

article.js-app div.drawlines_drawlinesFrame {
  display: table;
}

article.js-app div.drawlines_tapntapSourceSelection {
  border-color: #ff5100;
  border-style: solid;
}

article.js-app div.drawlines_tapntapTargetSelection {
  border-color: #ff5100;
  border-style: solid;
}

article.js-app drawlines_footer {
  position: absolute;
}
article.js-app div.drawlines_imageEncloser {
  margin-left: 1em;
  position: relative;
}

article.js-app div.drawlines_targetMarker {
  border-width: 2px;
  border-color: red;
  border-style: solid;
  background-color: white;
  position: absolute;
  width: 10px;
  height: 10px;
  z-index: 2;
}

article.js-app div.drawlines_dropSource {
  display: block;
  overflow: auto;
  margin-top: 1em;
  margin-bottom: 1em;
  height: 5em;
}

article.js-app div.drawlines_dropTarget {
  display: block;
  height: 1em;
  margin-bottom: 1em;
}

article.js-app div.drawlines_dropSource div.ui-draggable-helper {
  background: none;
}

article.js-app div.drawlines_dropSource div {
  font-size: 1.6em;
  margin-bottom: 0.2em;
  padding: 0px 0.125em 0px 0.125em;
  background: #eee;
  display: inline-block;
  margin-right: 0.3em;
  cursor: pointer;
  -webkit-border-radius: 0.125em;
  -moz-border-radius: 0.125em;
  border-radius: 0.125em;
  -webkit-transition: background-color 0.5s ease 0s;
  -moz-transition: background-color 0.5s ease 0s;
  -o-transition: background-color 0.5s ease 0s;
  transition: background-color 0.5s ease 0s;

  /* For IE 7 */
  zoom: 1;
  *display: inline;
}

article.js-app div.drawlines_dropSource div.ui-draggable-dragging {
  -webkit-box-shadow: 1px 1px 2px #888;
  -moz-box-shadow: 1px 1px 2px #888;
  box-shadow: 1px 1px 2px #888;
}

article.js-app div.drawlines_dropSource div.drawlines_hidden {
  visibility: hidden;
}
article.js-app div.drawlines_correct {
  font-size: 1.6em;
  background-color: #d0ffbf;
  -webkit-box-shadow: 1px 1px 2px #888;
  -moz-box-shadow: 1px 1px 2px #888;
  box-shadow: 1px 1px 2px #888;
}

article.js-app div.drawlines_dropSource div.drawlines_incorrect {
  background-color: #ff5656;
  -webkit-box-shadow: 1px 1px 2px #888;
  -moz-box-shadow: 1px 1px 2px #888;
  box-shadow: 1px 1px 2px #888;
}

article.js-app div.drawlines_dropTarget div {
  font-size: 1.3em;
  margin-bottom: 0.2em;
  display: inline-block;
  padding: 0em;
  cursor: default;

  /* For IE 7 */
  zoom: 1;
  *display: inline;
}

article.js-app div.drawlines_dropTarget div span.drawlines_droppable {
  background: #eee;
  -webkit-border-radius: 0.125em;
  -moz-border-radius: 0.125em;
  border-radius: 0.125em;
  -webkit-transition: background-color 0.5s ease 0s;
  -moz-transition: background-color 0.5s ease 0s;
  -o-transition: background-color 0.5s ease 0s;
  transition: background-color 0.5s ease 0s;
}

article.js-app div.drawlines_dropTarget div span.drawlines_hovered {
  -webkit-box-shadow: 1px 1px 2px #888;
  -moz-box-shadow: 1px 1px 2px #888;
  box-shadow: 1px 1px 2px #888;
}