style.css

@import url("https://fonts.googleapis.com/css2?family=Poppins:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&display=swap");
@import url("https://cdn.jsdelivr.net/npm/bootstrap-icons@1.8.2/font/bootstrap-icons.css");

:root {
  --box-shadow: rgba(0, 0, 0, 0.24) 0px 3px 8px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-size: 16px;
  font-family: "Poppins", sans-serif;
  text-decoration: none;
  list-style: none;
}

.quiz {
  background-color: #0d479a;
  padding: 30px;
}
.heading {
  margin: 10px auto 10px auto;
}
.heading .title {
  font-size: 30px;
  color: #fff;
  font-weight: 500;
  text-align: center;
}
.heading .subtitle {
  font-size: 20px;
  color: #fff;
  font-weight: 500;
  text-align: center;
}

.result {
  text-align: center;
  min-width: 350px;
  max-width: 400px;
  margin: 20px auto;
  border-radius: 5px;
  background: white;
  box-shadow: var(--box-shadow);
}
.result p:first-child {
  padding: 10px 20px;
}
.hide {
  display: none;
}
.reload button {
  background-color: #04aa6d;
  color: #fff;
  padding: 10px 20px;
  border-radius: 0px 0px 5px 5px;
  width: 100%;
  border: 0px;
}
.reload button:hover {
  background-color: #3aecab;
  cursor: pointer;
}
.quiz-form {
  max-width: 600px;
  margin: auto;
}
.question {
  background-color: #fff;
  padding: 10px 20px;
  border-radius: 5px;
  margin: 20px 0px;
  box-shadow: var(--box-shadow);
}
.question > * {
  font-size: 18px;
}
.option {
  margin-left: 10px;
}
.correct {
  background-color: #c8ffdf;
}
.wrong {
  background-color: #ff5d5d;
}
.submit {
  text-align: center;
  margin: 30px 0px;
}
.submit input {
  background-color: #04aa6d;
  padding: 5px 25px;
  color: white;
  font-size: 22px;
  border-radius: 5px;
  box-shadow: var(--box-shadow);
  border: 0;
}
.submit input:hover {
  background-color: #3aecab;
  cursor: pointer;
}