style.css

* {
  margin: 0;
  padding: 0;
  font-family: sans-serif;
}

body {
  background-color: #a399b2;
  background-image: linear-gradient(147deg, #a399b2 0%, #4d4855 74%);
}

main {
  width: 50%;
  height: 50%;
  overflow: auto;
  margin: auto;
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  text-align: center;
}

label {
  flex: 1 1 40%;
  border-radius: 8px;
  padding: 15px;
  color: #b4886b;
  font-weight: bold;
}
.values {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  max-width: 768px;
  border-radius: 5px;
  background-color: #f2f2f2;
  padding: 20px;
}

.value {
  flex: 1 1 40%;
  margin: 15px;
  appearance: none;
  background: none;
  background-color: #fff;
  border-radius: 8px;
  padding: 15px;
  border: none;
  outline: none;
  transition: 0.4s;
}