div.dt-button-info {
  position: fixed;
  top: 50%;
  left: 50%;
  width: 400px;
  margin-top: -100px;
  margin-left: -200px;
  background-color: white;
  border: 2px solid #111;
  box-shadow: 3px 3px 8px rgba(0, 0, 0, 0.3);
  border-radius: 3px;
  text-align: center;
  z-index: 21;
}
div.dt-button-info h2 {
  padding: 0.5em;
  margin: 0;
  font-weight: normal;
  border-bottom: 1px solid #ddd;
  background-color: #f3f3f3;
}
div.dt-button-info > div {
  padding: 1em;
}

div.dt-buttons {
  position: relative;
  float: left;
}
div.dt-buttons .dt-button {
  margin-right: 0;
}
div.dt-buttons .dt-button span.ui-icon {
  display: inline-block;
  vertical-align: middle;
  margin-top: -2px;
}
div.dt-buttons .dt-button:active {
  outline: none;
}
div.dt-buttons .dt-button:hover > span {
  background-color: rgba(0, 0, 0, 0.05);
}

div.dt-button-collection {
  position: absolute;
  top: 0;
  left: 0;
  width: 150px;
  margin-top: 3px;
  padding: 8px 8px 4px 8px;
  border: 1px solid #ccc;
  border: 1px solid rgba(0, 0, 0, 0.4);
  background-color: #f3f3f3;
  background-color: rgba(255, 255, 255, 0.3);
  overflow: hidden;
  z-index: 2002;
  border-radius: 5px;
  box-shadow: 3px 3px 5px rgba(0, 0, 0, 0.3);
  z-index: 2002;
  -webkit-column-gap: 8px;
  -moz-column-gap: 8px;
  -ms-column-gap: 8px;
  -o-column-gap: 8px;
  column-gap: 8px;
  -webkit-column-gap: 0;
  -moz-column-gap: 0;
  -ms-column-gap: 0;
  -o-column-gap: 0;
  column-gap: 0;
}
div.dt-button-collection .dt-button {
  position: relative;
  left: 0;
  right: 0;
  display: block;
  float: none;
  margin-right: 0;
}
div.dt-button-collection .dt-button:last-child {
  margin-bottom: 4px;
}
div.dt-button-collection .dt-button:hover > span {
  background-color: rgba(0, 0, 0, 0.05);
}
div.dt-button-collection.fixed {
  position: fixed;
  top: 50%;
  left: 50%;
  margin-left: -75px;
  border-radius: 0;
}
div.dt-button-collection.fixed.two-column {
  margin-left: -150px;
}
div.dt-button-collection.fixed.three-column {
  margin-left: -225px;
}
div.dt-button-collection.fixed.four-column {
  margin-left: -300px;
}
div.dt-button-collection > * {
  -webkit-column-break-inside: avoid;
  break-inside: avoid;
}
div.dt-button-collection.two-column {
  width: 300px;
  padding-bottom: 1px;
  -webkit-column-count: 2;
  -moz-column-count: 2;
  -ms-column-count: 2;
  -o-column-count: 2;
  column-count: 2;
}
div.dt-button-collection.three-column {
  width: 450px;
  padding-bottom: 1px;
  -webkit-column-count: 3;
  -moz-column-count: 3;
  -ms-column-count: 3;
  -o-column-count: 3;
  column-count: 3;
}
div.dt-button-collection.four-column {
  width: 600px;
  padding-bottom: 1px;
  -webkit-column-count: 4;
  -moz-column-count: 4;
  -ms-column-count: 4;
  -o-column-count: 4;
  column-count: 4;
}

div.dt-button-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  /* Fallback */
  background: -ms-radial-gradient(center, ellipse farthest-corner, rgba(0, 0, 0, 0.3) 0%, rgba(0, 0, 0, 0.7) 100%);
  /* IE10 Consumer Preview */
  background: -moz-radial-gradient(center, ellipse farthest-corner, rgba(0, 0, 0, 0.3) 0%, rgba(0, 0, 0, 0.7) 100%);
  /* Firefox */
  background: -o-radial-gradient(center, ellipse farthest-corner, rgba(0, 0, 0, 0.3) 0%, rgba(0, 0, 0, 0.7) 100%);
  /* Opera */
  background: -webkit-gradient(radial, center center, 0, center center, 497, color-stop(0, rgba(0, 0, 0, 0.3)), color-stop(1, rgba(0, 0, 0, 0.7)));
  /* Webkit (Safari/Chrome 10) */
  background: -webkit-radial-gradient(center, ellipse farthest-corner, rgba(0, 0, 0, 0.3) 0%, rgba(0, 0, 0, 0.7) 100%);
  /* Webkit (Chrome 11+) */
  background: radial-gradient(ellipse farthest-corner at center, rgba(0, 0, 0, 0.3) 0%, rgba(0, 0, 0, 0.7) 100%);
  /* W3C Markup, IE10 Release Preview */
  z-index: 2001;
}

@media screen and (max-width: 640px) {
  div.dt-buttons {
    float: none !important;
    text-align: center;
  }
}
