JS/HTML tutorials ( and CSS too)

---

• canvas\light\rays.html. shadow calculation by intersection (intersection of circle with line segment).

---

• libraries (libs) intended for shared re-use.

---

• 1 alert_click.html
• 2 prompt_ul_li.html
• 3 remove_child.html
• 4 password.html

---

• requiring_login.html
• user-tag.html
• pin.html

---

• beginner/view-tabs.html
• css/grids.html

---