50 CSS Selectors


50 Problems Solved

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ngcolombia.com

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CONCLUSION #1

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Most CSS problems can be solved using IDs

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Most CSS problems can be solved using classes

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Adding classes documents our HTML

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The problems resides on maintainability

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CONCLUSION #2

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Some operators do not provide a tangible value

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CONCLUSION #3

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Some operators might not even become standard

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Context

Simple Selectors

Group Selectors

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Combi-nators

Attribute Selectors

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Pseudo Selectors

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Combi-nators

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Attribute Selectors

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Attribute Selectors

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Attribute Selectors

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Exact value

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Starts with

Ends with

Contains

Pseudo-Selectors

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Pseudo-clases
 

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:hover

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:not

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Turn gray images
#a11y

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:focus

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Open here

Use it
for
inputs

:checked

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Change color on check

:disabled

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Add styles to disabled inputs

:matches

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Reduce clutter on pseudo-elements

:link
:hover
:active
:visited

Before any click

After visiting link

On Mouse over

On Click

:active

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Hide anything you click on

:nth-child(n)

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Apply to even items only

Apply to every 3rd item

Apply to 7th item only

:nth-last-child(n)

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Counting from the end

:nth-of-type(n)

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Counting only certain types

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Pseudo-elements

::after

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::first-letter

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Increase first letter size

::first-line

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Increase first line size

::selection

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Change background color on selection

Unusual Selectors

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:empty

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Nodes with no children

:valid

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Inputs with valid values on it

#forms

:only-of-type

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Child whose siblings are of a different type

:optional

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Non-required inputs on a form

:in-range

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Inputs with valid values on it, that are within a range

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THANK YOU!

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THANK YOU!

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