.center{
  position: absolute;
  top: 50%;
  left: 50%;
  margin-right: -50%;
  transform: translate(-50%, -50%);
}

.HeadBox{
  position: relative;
  text-align:center;
  width: 700px; height:
  150px; background:
  #FF0000;
  border: solid;
}

.HeadText{
  position: relative;
  padding: 1.5em 1.5em;
  text-align:center;
  font-size:32px;
  color: white;
  padding: 0.0em 0.1em;
  font-weight:bold;
}

.BottomBox{
  position: relative;
  text-align:center;
  margin-top:-10px;
  width: 700px;
  height: 600px;
  background: #FFFFFF;
  border: solid;
}

.BottomText{
  position: relative;
  text-align:center;
  font-size:24px;
  color: black;
  font-weight:bold;
}

.NumCode{
  position: relative;
  width: 250px;
  padding: 0.3em 1.5em;
  text-align:center;
  border: 1px solid #999;
  box-sizing: border-box;
  background: #f2f2f2;
  margin: 0em;
  font-size:32px;
  border: solid;
}

.URLStart{
  position: relative;
  width: 250px;
  padding: 0.3em 1.5em;
  line-height: 1.5;
  border: 1px solid #999;
  box-sizing: border-box;
  background: #FACD19;
  margin: 0em;
  font-size:32px;
  font-weight:bold;
  border: solid;
}