/*
	transformSelect CSS
*/
.transformSelect {
  /*! clear: both; */
  /*! width: 100%; */
}

.transformSelect li {
  /*! position: relative; */
  list-style: none;
}

.transformSelect span, .transformSelect input[type=text] {
  background: #ffffff no-repeat url(../images/fancyform/transformselect.gif) right center;
  border: 1px solid #ccc;
  color: #575757;
  cursor: pointer;
  display: block;
  left: 0;
  margin: 0;
  padding: 3px 5px;
  top: 0;
  line-height: 20px;
  border-radius: 5px;
  -webkit-border-radius: 5px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.transformSelect li.open span, .transformSelect li.open input[type=text] {
  border-radius: 5px 5px 0 0;
  -webkit-border-radius: 5px 5px 0 0;
}

.transformSelect input[type=text] {
  width: 188px;
}

.transformSelect ul {
  position: absolute;
  border: 1px solid #CCCCCC;
  border-top: 0;
  width: 198px;
  border-radius: 0 0 5px 5px;
  -webkit-border-radius: 0 0 5px 5px;
}

.transformSelect ul span {
  border: 0;
  background: #ffffff;
}

.transformSelect ul span:hover {
  background: #dddddd;
  border-radius: 0;
  -webkit-border-radius: 0;
}

.transformSelect ul li {
  height: auto;
}

.transformSelect li.group ul {
  position: static;
  border: 1px solid #dddddd;
  border-right: 0;
  border-left: 0;
  border-radius: 0;
  -webkit-border-radius: 0;
}

.transformSelect li.group span {
  font-style: italic;
  border-radius: 0;
  -webkit-border-radius: 0;
  background: #F7F7F7;
}

.transformSelect li.group > span {
  background: #eeeeee;
  border-top: 1px solid #dddddd;
}

.transformSelect li.group ul span {
  text-indent: 10px;
  font-style: normal;
}

.transformSelect ul li.group ul span:hover {
  background: #dddddd;
}

.transformSelect input[type=checkbox] {
  position: relative;
  top: 2px;
  margin: 0 5px 0 0;
  cursor: pointer;
}

/* Radio */
.trans-element-radio {
  display: inline-block;
  *display: block;
  zoom: 1;
  width: 16px;
  height: 16px;
  cursor: pointer;
}

.trans-element-radio.checked {
  background: no-repeat url(../images/fancyform/chk_on.png) center center;
}

.trans-element-radio.unchecked {
  background: no-repeat url(../images/fancyform/chk_off.png) center center;
}

.image img, .trans-element-radio, .trans-element-checkbox, #tristate img {
  padding: 5px;
  border: 1px solid #dddddd;
  border-radius: 5px;
  -webkit-border-radius: 5px;
  vertical-align: middle;
  margin: 0 0 5px;
}

/* Checkbox */
.trans-element-checkbox {
  display: inline-block;
  *display: block;
  zoom: 1;
  width: 16px;
  height: 16px;
  cursor: pointer;
}

.trans-element-checkbox.checked {
  background: no-repeat url(../images/fancyform/chk_on.png) center center;
}

.trans-element-checkbox.unchecked {
  background: no-repeat url(../images/fancyform/chk_off.png) center center;
}
<link href="/sitecore/shell/themes/standard/default/Default.css" rel="stylesheet" />

<link href="/sitecore/shell/controls/Lib/Flexie/flex.css" rel="stylesheet" />