.navbar_header_logolink img { padding-top: 20px; /* 增加圖片上方空間 */ padding-bottom: 20px; /* 增加圖片下方空間 */ }
  Previous Lesson Complete and Continue  

  Lesson 2: 根據不同引伸波幅情況去制定策略 (尚未開放)

Lesson content locked
If you're already enrolled, you'll need to login.
Enroll in Course to Unlock