button#start-button {
  background-color: lightgreen;
  color: black;
  padding: 10px;
  border-width: 2px;
  border-color: darkgreen;
  border-radius: 4px;
  text-align: center;
  font-size: 16px;
}

button#help-button {
  background-color: lightblue;
  color: black;
  padding: 10px;
  border-width: 2px;
  border-color: darkblue;
  border-radius: 4px;
  text-align: center;
  font-size: 16px;
}

body {
  border-color: gray;
  border-width: 2px;
}

input {
  box-sizing: border-box;
  padding: 10px;
  font-family: "Roboto", Helvetica, Arial, sans-serif;
  border-width: 2px;
  border-color: black;
  border-radius: 4px;
}

.flex-container {
  display: flex;
  flex-direction: row;
}

.flex-child {
  flex: 1;
  align-items: center;
  text-align: center;
  justify-content: center;
  align-items: stretch;
}

.flex-child:first-child {
  margin-right: 20px;
  margin-bottom: 20px;
  display: grid;
}

label {
  font-family: "Roboto", Helvetica, Arial, sans-serif;
}