Check your knowledge about selectors

Do you want to check your fundamental knowledge of Front End Developer? Check if you can deal with selectors! You can do it on this page:
https://flukeout.github.io/

In this simple app you can check your knowledge about selectors based on:
element
#id
element in element
#id A
.classname
element.className
Put your back into it!
tag, tag (list of element)
*
element *
element + element
element ~ element
element > element
:first-child
:only-child
:last-child
:nth-child(A)
:nth-last-child(A)
:first-of-type
:nth-of-type(A)
:nth-of-type(An+B)
:only-of-type
:last-of-type
:empty
:not(X)

So if you want to learn it just check it out! If you know it you should check it if you dont lie : )