:root {
  background-color: #ecf5ff;
  font-size: 10px; /*  default font-size:  of root is 16px; */
}
* {
  box-sizing: border-box;
  font-family: Arial, Helvetica, sans-serif;
  margin: 0;
  padding: 0;
  color: #333;
}

h1,
h2,
h3,
h4 {
  margin-bottom: 1rem;
}

h1 {
  font-size: 5.4rem;
  color: #56a5eb;
  margin-bottom: 5rem;
}

h1 > span {
  font-size: 2.4rem; /* means 24px */
  font-weight: 500;
}

h2 {
  font-size: 4.2rem;
  margin-bottom: 4rem;
  font-weight: 700;
}

h3 {
  font-size: 2.8rem;
  font-weight: 500;
}

/* End Page */
form{
  width:100%;
}

input{
  margin-bottom: 1rem;
  width: 20rem;
  padding:1.5rem;
  font-size: 1.8rem;
  border: none;
  box-shadow: 0 0.1rem 1.4rem 0 rgba(86, 185, 235, 0.5);

}

input::placeholder{
  color: #aaa
}