CSS

1. font

1.1. font-family

1.2. font-style

1.3. font-size

1.4. font-weight

2. padding

3. margin

4. backgroud

4.1. background-color

4.2. background-image

4.3. background-repeat

4.4. background-size

4.5. background-position

4.6. background-attachment

5. link

5.1. a:link

5.2. a:hover

5.3. a:active

5.4. a:visited

6. table

6.1. border

6.1.1. border-spacing

6.2. colspan

6.3. rowspan

7. pseudo

7.1. pseudo class

7.2. pseudo elemnent

8. position

8.1. static *

8.2. relative

8.3. absolute

8.4. sticky

9. transition

10. Selector

10.1. tag name

10.2. id

10.3. class

11. styling text

11.1. color

11.2. text-align

11.3. text-decoration

11.4. text-transform

11.5. text-indent

11.6. letter-spacing

11.7. word-spacing

11.8. line-height

11.9. text-shadow

12. border

13. icon

14. list

14.1. unorder list

14.1.1. list-style-type

14.2. order list

14.2.1. type

15. css combinator

15.1. space

15.2. (>)

15.3. (+)

15.4. (~)

16. flexbox

16.1. flex-direction

16.2. justify-content

16.3. align-items

16.4. flex-basis

16.5. flex-grow

16.6. flex-shrink

16.7. order

17. Transform

17.1. translate

17.2. scale

17.3. roletate

17.4. skew

17.5. matric