vertical centering

• 🛠️ How to Center in CSS?

• 👉 vertical-align

重點

/* inline element */
text-align: enter;

/* block element */
margin: 0 auto;

/* flex */
display: flex;
justify-content:center;
align-items:center;

參考

📗 文章

• CSS Vertical Align - How to Center a Div, Text, or an Image (freeCodeCamp)