style.css

@import url("https://fonts.googleapis.com/css2?family=Roboto:wght@100;300;400;500;700;900&display=swap");

* {
  box-sizing: border-box;
  padding: 0;
  margin: 0;
}

body {
  font-family: "Roboto", sans-serif;
  background-color: #eeee;
  color: white;
  text-align: center;
}

h1 {
  margin: 10px 0;
  font-size: 40px;
}

span {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
  border-radius: 50%;
  background-color: #ffad22;
  color: white;
  font-weight: bold;
  margin: 8px;
  font-size: 25px;
  flex: 1;
  aspect-ratio: 1/1;
}

.container {
  width: 95%;
  min-height: 100vh;
  max-width: 1440px;
  margin: 0 auto;
  padding: 15px;
  background-color: #229fb1;
}

#resultado {
  padding: 10px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-evenly;
  margin-bottom: 50px;
}

button {
  width: 100%;
  padding: 20px;
  margin-top: 15px;
  border: none;
  background-color: #ffad22;
  color: #fff;
  font-size: 20px;
  font-weight: bold;
  border-radius: 5px;
}

select {
  width: 100%;
  padding: 20px;
  text-align: center;
}