div.shdu {
  position:absolute;
  top:0px;
  left:0px;
  width:100%;
  height:100%;
  opacity:0.4;
  background-color:#000;
  z-index: 101;
  filter: alpha(opacity=50);
  transition: opacity .2s, visibility .5s;
}
.reqdu {
  position:absolute;
  display:inline-block;
  z-index: 102;
  top:-300px;
  left:5px;
  min-width:20em;
  padding:0 0 1em 0;
  background-color:#fff;
  border: solid 1px #404040;
  border-radius:2px;
  overflow:hidden;
  transition: top .2s;
  box-shadow: 2px 2px 8px 4px rgba(100,100,100,.7);
}
.rdna {
  transition: none;
}
.reqdu h2 {
background:#5070a0;
color:#e7e7e7;
font-size:1em;
width:100%;
font-size:1.1em;
margin:0 0 .5em 0;
padding:.5em 1em;
box-sizing: border-box;
}
.reqdu div {
padding:.5em 1em;
text-align:center;
}
.clz {
position:absolute;
top:0;
right:0;
cursor: pointer;
}


.chkbcont {
  display: inline-block;
  position: relative;
  cursor: pointer;
  height:24px; width:24px;
  margin:0 .2em 0 0;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

/* Hide the browser's default checkbox */
.chkbcont input {
  position: absolute;
  opacity: 0;
  cursor: pointer;
  height: 0;
  width: 0;
}

/* Create a custom checkbox */
.chkbmark {
  position: absolute;
  top: 0;
  left: 0;
  height: 24px;
  width: 24px;
  border:1px solid #bbb;
  background-color: #fff;
}

/* On mouse-over, add a grey background color */
.chkbcont:hover input ~ .chkbmark {
  background-color: #ccc;
}

/* When the checkbox is checked, add a blue background */
.chkbcont input:checked ~ .chkbmark {
  background-color: #2196F3;
  border-color:#2196F3;
}

/* Create the checkmark/indicator (hidden when not checked) */
.chkbmark:after {
  content: "";
  position: absolute;
  display: none;
}

/* Show the checkmark when checked */
.chkbcont input:checked ~ .chkbmark:after {
  display: block;
}

/* Style the checkmark/indicator */
.chkbcont .chkbmark:after {
  left: 9px;
  top: 5px;
  width: 5px;
  height: 10px;
  border: solid white;
  border-width: 0 3px 3px 0;
  -webkit-transform: rotate(45deg);
  -ms-transform: rotate(45deg);
  transform: rotate(45deg);
}