styles.css

:root {
  --primary-color: #0000ff;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
a {
  text-decoration: none;
  color: #f9f9f9;
  font-weight: bold;
}
.navbar {
  height: 80px;
  display: flex;
  padding: 20px;
  gap: 2rem;
  background-color: var(--primary-color);
  border-radius: 0px 0px 0px 20px;
}
.base {
  display: flex;
  align-items: center;
  flex-direction: column;
  margin-top: 30px;
  gap: 1.5rem;

  justify-content: center;
  border: 2px solid var(--primary-color);
  margin: 2% 30% 2% 30%;
}
#output {
  padding: 1rem;
  color: var(--primary-color);
  font-weight: bold;
  border-radius: 3px;
  outline: none;
  margin-left: 8%;
}
#btn {
  padding: 1rem;
  background-color: var(--primary-color);
  color: #f9f9f9;
  font-weight: bold;
  border-radius: 3px;
  outline: none;
}
/*Quiz form*/
.quiz-form {
  border: 2px solid var(--primary-color);
  margin-top: 2%;
  margin: 2% 20% 2% 20%;
  border-radius: 10%;
}
.container {
  border: 2px solid var(--primary-color);
  margin: 0.5rem;
  padding: 0.5rem;
  display: flex;
  align-items: center;
  flex-direction: column;
  margin: 2% 28% 2% 28%;
  border-radius: 10%;
  gap: 0.5rem;
}
#submitButton {
  padding: 1rem;
  background-color: var(--primary-color);
  color: #f9f9f9;
  font-weight: bold;
  border-radius: 3px;
  outline: none;
  margin-left: 45%;
}
#score_output {
  margin-left: 44%;
  color: var(--primary-color);
  margin-top: 1%;
}
input {
  border: 2px solid var(--primary-color);
  outline: none;
  padding: 0.5rem;
}