style.css

* {
  font-family: Ubuntu;
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}
body {
  display: flex;
  justify-content: center;
  align-items: center;
  background: #686868;
}
.container {
  width: 30%;
  height: 75%;
  display: flex;
  justify-content: center;
  margin-top: 10%;
  border-radius: 25px;
  background-image: linear-gradient(315deg, #5b6467 0%, #8b939a 74%);
  box-shadow: 2px 31px 35px -15px rgba(0, 0, 0, 0.64);
  padding: 10px;
}
.b64 {
  width: 500px;
  margin-top: 5%;
}
header h1 {
  text-align: center;
  color: #fff;
}
.input-container {
  margin: 30px 0;
}
.btn-container {
  text-align: center;
}
header p {
  font-size: 1.1rem;
  color: #fff;
  margin: 15px 0;
  text-align: center;
}
input {
  width: 70%;
  border: none;
  background-color: #fff;
  padding: 15px;
  color: rgb(66, 66, 66);
  font-size: 1.1rem;
  border-radius: 10px;
}
input:focus {
  outline: none;
}
button {
  border: none;
  padding: 10px 25px;
  background-color: #fff;
  border-radius: 10px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.5s ease-in-out;
}
button:hover {
  transform: scale(1.1);
}