#input-menu {
  position: fixed;
  bottom: 0;
  width: 100%;
  background-color: #ccc;
  padding: 15px;
  box-sizing: border-box;
  display: flex;
  align-items: center;
}

#input-menu input[type="text"] {
  flex-grow: 1;
  margin-right: 20px;
  font-size: 20px;
  padding: 5px;
  border-radius: 3px;
  border: none;
}

#input-menu button[type="submit"] {
  background-color: #007bff;
  color: #fff;
  font-size: 20px;
  padding: 5px 10px;
  border: none;
  border-radius: 3px;
  cursor: pointer;
}