1.In font-family, mostly we can use serif and sans-serif.sans- 

 serif is widely used in modern-websites and we can use serif 

 in luxury websites.

2.In sans-serif , we can use Inter, Opensas, roboto, 

   Montserrat , worksans , lato etc

3.In serif , we can use Merriweather, aleso, playfair-display, 

   cormorant , cardo, lora etc

1.Normal text 16px-32px

2.font-size of Long text can be more than 20px.

3.Headlines 50px and font-weight:600

4.For any text don't go more than font-weight:400 expect 

  headlines

1.Don't make paragraph so long and Use less than 75 characters 

 per line.

2.if paragraphs are long , user's will find it difficult to 

 read the information that you are trying to convey through 

 it.

1.For Normal text, line-height should be in between 1.5 and 2

2.For big Text go for less than 2

1.Decrease letter spacing in headlines

2.For small headlines , make every letter in uppercase With 

  low letterspacing

1.Don't justify text

2.Small blocks are fine

3.Don't center long text blocks