#app {
  font-family: Arial, Helvetica, sans-serif;
  padding: 0 20px 50px 20px;
}

.btn {
  padding: 5px 7px;
  margin: 10px 0;
  border: 1px solid #000;
  background: #fff;
  width: fit-content;
  cursor: pointer;
  user-select: none;

  transition: background 200ms;
}

.btn:hover {
  background: #eee;
}

h1 {
  margin: 0;
  padding: 30px 0 0 0;
}

.text {
  padding: 10px 0;
}

.info {
  padding: 10px 0;
  color: #f00;
}

label[for="exerciseInput10a"],
label[for="exerciseInput10b"],
label[for="exerciseInput10c"],
label[for="exerciseInput10d"] {
  display: inline-block;
  min-width: 150px;
}

.car-array-preview {
  min-height: 50px;
  margin: 5px 0;
  padding: 5px;
  border: 1px solid #ccc;
  white-space: pre-line;
  line-height: 1.5;
}