.content h2 {
  margin: 0;
  padding: 25px 0;
  font-size: 22px;
  border-bottom: 1px solid #ebebeb;
  color: #666666;
}
Create the reviews.css file and add:

CSS
.reviews .overall_rating .num {
  font-size: 30px;
  font-weight: bold;
  color: #F5A624;
}
.reviews .overall_rating .stars {
  letter-spacing: 3px;
  font-size: 32px;
  color: #F5A624;
  padding: 0 5px 0 10px;
}
.reviews .overall_rating .total {
  color: #777777;
  font-size: 14px;
}
.reviews .write_review_btn, .reviews .write_review button {
  display: inline-block;
  background-color: #565656;
  color: #fff;
  text-decoration: none;
  margin: 10px 0 0 0;
  padding: 5px 10px;
  border-radius: 5px;
  font-size: 14px;
  font-weight: 600;
  border: 0;
}
.reviews .write_review_btn:hover, .reviews .write_review button:hover {
  background-color: #636363;
}
.reviews .write_review {
  display: none;
  padding: 20px 0 10px 0;
}
.reviews .write_review textarea {
  width: 100%;
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 5px;
  height: 150px;
  margin-top: 10px;
}
.reviews .write_review input {
  display: block;
  width: 250px;
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 5px;
  margin-top: 10px;
}
.reviews .write_review button {
  cursor: pointer;
}
.reviews .review {
  padding: 20px 0;
  border-bottom: 1px solid #eee;
}
.reviews .review .name {
  padding: 0 0 3px 0;
  margin: 0;
  font-size: 18px;
  color: #555555;
}
.reviews .review .rating {
  letter-spacing: 2px;
  font-size: 22px;
  color: #F5A624;
}
.reviews .review .date {
  color: #777777;
  font-size: 14px;
}
.reviews .review .content {
  padding: 5px 0;
}
.reviews .review:last-child {
  border-bottom: 0;
}