body {
 background: silver; 
}

.container {
 text-align: center;
 border: thick solid indigo;
 border-radius: 10px;
 padding: 15px;
 width: 500px;
 margin: auto;
 background-color: darkmagenta;
}

.question {
  background-color: white;
  margin: 25px auto;
  border-radius: 10px;
  width: 75%;
  text-align: center;
}

.subtitle {
  text-align: center;
  font-size: 25px;
  font-weight: bold; 
  text-decoration: underline;
}

.allquestions {
 text-align: center;
 font-weight: bold;
 font-size: 20px;
 border: thick solid black;
 background-color: white;
 margin: 75px;
 border-radius: 15px;
}

.submit {
 text-align: center;
 margin-left: auto;
 margin-right: auto;
 margin-top: -30px;
 padding: 20px;
}

.submit button {
  background-color: plum;
  font-weight: bold;
  width: 100px;
  height: 50px;
}

.question1 button {
 background-color: plum; 
 font-weight: bold;
}

.question2 button {
 background-color: plum;
 font-weight: bold;
}

.question3 button {
 background-color: plum;
 font-weight: bold;
}

.question4 button {
 background-color: plum;
 font-weight: bold;
}

.question5 button {
 background-color: plum;
 font-weight: bold;
}

.question6 button {
 background-color: plum;
 font-weight: bold;
}

.question7 button {
 background-color: plum;
 font-weight: bold;
}

.question8 button {
 background-color: plum;
 font-weight: bold;
}

.question9 button {
 background-color: plum;
 font-weight: bold;
}

.question10 button {
 background-color: plum;
 font-weight: bold;
}