body {
  background: #dcdceb;
}

#form {
  display: grid;
  place-items: center;
  margin-top: 50px;
}

.form-wrapper {
  max-width: 500px;
  box-shadow: 0 4px 21px 3px rgba(13, 13, 13, 0.43);
  border-radius: 10px;
  background: white;
}

.leadform,
.leadform * {
  box-sizing: border-box;
}
.leadform {
  padding: 10px;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  flex: 1;
}
.leadform > div {
  margin: 10px 0;
  position: relative;
}