stylesDetail.css

body {
  margin: 50px 10%;
  font-family: Verdana, sans-serif;
  background-color: #262626;
  color: white;
  font-size: 1.5rem;

  display: flex;
  flex-direction: column;
}

h1 {
  font-size: 5rem;
  margin-top: 100px;
  margin-bottom: 0;
  text-align: center;
}

h3 {
  font-size: 2rem;
  font-weight: normal;
  text-align: center;
}

body > div:nth-child(2) {
  display: flex;
  flex-direction: row;
}

body > div:nth-child(1) > div:nth-child(2) {
  display: flex;
  flex-direction: row;
  justify-content: space-evenly;
  margin: 50px;
}

body > div > div {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

body > div:nth-child(2) > div {
  flex: 1;
  align-items: center;

  background-color: #3d3d3d;
  margin: 20px;
  padding: 20px;
  border-radius: 15px;
  height: 200px;
}

span.numt {
  font-size: 6rem;
  font-weight: bold;
  transition: all 0.7s ease;
}

span.subt {
  font-size: 0.7rem;
}

body > div:nth-child(2) > div:hover span.numt {
  font-size: 8rem;
}