*
{
  margin: 0;
  padding: 0;
  font-family: sans-serif;
}
body
{
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background: #f8f8f8;
}
.container
{
  position: relative;
  width: auto;
}
.container h1
{
  color: #333;
  font-size: 30px;
}
.container input
{
  position: relative;
  letter-spacing: 4px;
  font-size: 25px;
  height: 60px;
  width: 400px;
  padding: 10px;
  margin: 10px;
  background: #fff;
  border: none;
}
.container .btn
{
  position: relative;
  cursor: pointer;
  color: #fff;
  background: #333;
  font-size: 25px;
  border-radius: 8px;
  text-align: center;
  padding: 10px 10px;
}