#set {
  display: inline-block;
  text-align: left;
  margin-bottom: 5px;
}

input {
  font-family: sans-serif;
  font-size: 24px;
  width: 300px;
  height: 34px;
  margin-bottom: 6px;
  vertical-align: middle;
}

#setBox {
  font-size: 24px;
  margin-top: 20px;
  margin-bottom: 0px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
}

.Btn {
  font-size: 24px;
  height: 48px;
  width: 8ch;
  margin-top: 10px;
  margin-right: 0;
  margin-left: 0;

}

.sBtn {
  font-size: 16px;
  width: 78px;
  height: 38px;
  vertical-align: top;
  margin-left: 4px;
  box-sizing: border-box;
}

.btn-container {
  display: flex;
  justify-content: center;
  gap: 20px;
}

#txtdata { 
  font-family: monospace;
  font-size: 18px;
  height: 400px;
  width: 480px;
  display: block;
  margin-top: 10px;
  margin-right: 0;
  margin-left: 0;
}

.hidden {
  display: none !important;
}