.mathRandomTest {
  max-width: 600px;
  width: 100%;
  margin: 30px auto;
  padding: 20px 0;
  text-align: center;
  border: 1px solid #ccc;
  touch-action: manipulation;
}
.mathRandomTest h3 {
  font-size: 1.4em;
  margin: 0 0 30px;
  border: none;
  border-bottom: 5px solid #007b43;
  padding-bottom: 20px;
}
.mathRandomTest .result {
  font-size: 1.4em;
  margin: 30px 0 0;
  height: 300px;
  overflow: auto;
}
.mathRandomTest #result2.result,
.mathRandomTest #result3.result {
  height: 120px;
  text-align: left;
  padding: 10px;
}
.mathRandomTest #result2.result div,
.mathRandomTest #result3.result div {
  display: inline-block;
  margin: 5px 10px;
}
.mathRandomTest .makeNumBtn {
  color: #ffffff;
  background-color: #ff0000;
  padding: 10px 20px;
  font-size: 1.1em;
  cursor: pointer;
}
.mathRandomTest .makeNumBtn:hover {
  background-color: #cc0000;
}