.dysko {
  position: relative;
}

.dysko input {
  width: 100px !important;
  margin-right: -10px;
  text-align: right;
  padding-right: 30px !important;
}

.dysko:after {
  content: "Kč";
  color: dimgray;
  position: absolute;
  top:50%;
  transform: translateY(-50%);
  right: 5px;
}