13 Fatal mistakes you make it while design a web form (HTML 5 & CSS 3)

Mistake #1:      

If you have a few inputs, put them vertically

Mistake #2:    

 Labels above its input

Mistake #3:     

Spaces between labels and Input

Mistake #4:    

Don't use capital letters

Mistake #5:     

If  you have a few options, Shot them all

Mistake #6:    

Use Placeholder with label

Mistake #7:      

Vertical Checkbox

 

Mistake #8:      

Gather input patterns

 

 Mistake #9:     

Show the Helpers clearly

 Mistake #10:     

Each input have a measure

 Mistake #11:     

Select the correct and clear words

 Mistake #12:      

Explain Validation correctly

 Mistake #13:      

Show the important thing

 That's it my friend, if you learned something from this article ?
and are you ready to design a professional Forms ?  I wish that ^.^ .