#title-div {
  position: fixed;
  left: 50%;
  top: 20px;
  transform: translate(-50%, 0);
}

#title-h1 {
  font-size: 28px;
  margin: 0;
}

#com-container {
  position: relative;
  top: 110px;
}

.container {
  margin: 0 auto;
  width: 310px;
}

.input-div {
  margin: 20px 0;
  text-align: center;
}

input {
  width: 300px;
  height: 50px;
  font-size: 20px;
}

.btn {
  margin: 40px 0 0 0;
  width: 310px;
  height: 50px;
  font-size: 20px;
}