Let's learn about "border-radius" through illustrations.
Topics are,
1️⃣ Introduction
2️⃣ How to define?
2️⃣.1️⃣ One/Two/Three/Four Values
2️⃣.2️⃣ Percentage Value
2️⃣.3️⃣ Horizontal and Vertical Radius
3️⃣ Other Related Properties
4️⃣ Shapes using border-radius
5️⃣ Conclusion