style.css

* {
  font-family: Quicksand;
  font-size: 16px;
  color: #333;
}

body {
  margin: 0;
  height: 100vh;
  padding: 0;
  border: 0;
  background: linear-gradient(to bottom right, #f1f2b5, #eef2f3);
}

.form {
  background-color: #fff;
  height: 240px;
  width: 450px;
  border-radius: 20px;
  margin: 20px auto 20px auto;
  display: block;
  border: solid 1px #289df6;

  box-shadow: 0 0 40px 0 #ddd;
}

.form:hover {
  box-shadow: 0 0 60px 0 #ccc;
  transition: 0.4s;
  transform: scale(1.02);
}

.row-one {
  padding: 20px;
}

.row-two {
  padding: 20px;
}

.text-input {
  width: 60px;
  height: 30px;
  border-radius: 10px;
  background-color: #dbeffe;
  border: none;
  outline: none;
  padding: 5px 10px;
  cursor: pointer;
}

.text-input:last-child {
  margin-bottom: 35px;
}

.text-input:hover {
  background-color: #cbe7fd;
}

#submit {
  border: none;
  border-radius: 10px;
  height: 40px;
  width: 140px;
  background-color: #289df6;
  color: #fff;
  margin: auto;
  display: block;
  outline: none;
  cursor: pointer;
}

#submit:hover {
  background-color: #0a8ef2;
}

.text {
  display: inline-block;
  margin: 5px 20px 5px 8px;
}

.row-one {
  padding: 30px 20px 15px 20px;
}
.row-two {
  padding: 15px 20px 30px 20px;
}

.container {
  display: inline-block;
  position: relative;
  padding-left: 30px;
  cursor: pointer;
  user-select: none;
}

.container input {
  position: absolute;
  opacity: 0;
}

.checkmark {
  position: absolute;
  top: 0;
  left: 0;
  height: 25px;
  width: 25px;
  background-color: #dbeffe;
  border-radius: 50%;
}

.container:hover input ~ .checkmark {
  background-color: #cbe7fd;
}

.container input:checked ~ .checkmark {
  background-color: #289df6;
}

h1 {
  font-size: 30px;
  font-weight: 300;
  text-align: center;
  color: #289df6;
  padding-top: 15px;
  display: block;
}

h2 {
  font-size: 22px;
  font-weight: 300;
  text-align: center;
}

h3 {
  font-size: 24px;
  font-weight: 300;
  text-align: center;
  padding: 15px;
}

h3 b {
  font-size: 32px;
  font-weight: 300;
  color: #289df6;
}

.checkmark:after {
  content: "";
  position: absolute;
  display: none;
}

.container input:checked ~ .checkmark:after {
  display: block;
}

.container .checkmark:after {
  left: 9px;
  top: 5px;
  width: 5px;
  height: 10px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}