html,
body {
  height: 100%;
}
body {
  display: -ms-flexbox;
  display: flex;
  -ms-flex-align: center;
  align-items: center;
  padding-top: 40px;
  padding-bottom: 40px;
  background-color: #f5f5f5;
}
.inputBox {
  width: 100%;
}
.mainWindow {
   padding:20px;
   width: 50%;
   max-width:700px
}
.tbl {
  margin-top: 10px;
  margin-bottom: 10px;
}
.btnCell {
  margin-right: 5px;
}