body {
  font-family: Arial, sans-serif;
  text-align: center;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  background-color: #f4f4f4;
}
.quiz-con {
  width: 90%;
  max-width: 400px;
  background: white;
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}
.btn {
  padding: 10px 20px;
  margin-bottom: 3px;
  border: solid 2px black;
  background-color: rgb(147, 232, 255);
  color: black;
  cursor: pointer;
  font-size: 16px;
}
.btn:hover {
  background: rgb(107, 190, 213);
}
.bingo-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);  /* 20 Spalten */
  grid-template-rows: repeat(3, 1fr);     /* 20 Zeilen */
  width: 100%;               /* Größe des Spielfelds (anpassbar) */
  height: 400px;
  border: 1px solid black;
}
.bingo-grid div{
  display: flex;
  width: 100%;
  height: 100%;
  align-items: center;
  justify-content: center;
  border: 1px solid black;
  text-wrap: wrap;
  font-size: 12px;
  font-weight: bold;
}
.bingo-marked{
  background-color: rgb(168, 255, 158);
}
.question-con{
  margin-bottom: 20px;
}