style.css

* {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  background-color: yellowgreen;
  display: flex;
  align-items: center;
  justify-content: center;
}

.container {
  background-color: #fff;
  min-height: 55vh;
  width: 50vh;
  border-radius: 1rem;
  padding: 2rem;
}

form {
  margin: 2rem 0 1rem 0;
}

form input,
select,
button {
  border: none;
  outline: none;
  width: 100%;
  border-radius: 0.65rem;
}

form input {
  border: 1px solid lightgray;
  font-size: 1rem;
  height: 2.5rem;
  padding-left: 0.3rem;
}

.dropdown {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 2rem;
}

.dropdown i {
  font-size: 1rem;
  margin-top: 1rem;
}

.select-container img {
  max-width: 2rem;
}

.select-container {
  display: flex;
  justify-content: center;
  align-items: center;
  border: 1px solid lightgray;
  border-radius: 0.5rem;
  padding-left: 0.2rem;
}

.select-container select {
  font-size: 1rem;
  width: auto;
}

.msg-container {
  margin: 2rem 0 2rem 0;
  text-align: center;
}

form button {
  height: 2.5rem;
  font-size: 1.2rem;
  background-color: darkcyan;
  color: #fff;
}