Specificity, SMACSS and WordPress

by Peter Wilson

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Speciﬁcity, SMACSS and WordPress Peter Wilson @pwcc

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Speciﬁcity is your FRIEND

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Speciﬁcity is your FIEND

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Selector TYPES

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ID - #header

Site

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Class - .logo

Site

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Element - div

Site

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Attribute - [title="site"]

Site

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Pseudo Class - :hover

Site

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Pseudo Element - :before Site

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Important Property .logo { color: black !important; }

Site

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Inline CSS

Site

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INLINE CSS is best IGNORED

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INLINE CSS makes BABIES CRY

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Calculating SPECIFICITY

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Calculating Speciﬁcity

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Calculating Speciﬁcity

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Calculating Speciﬁcity

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Calculating Speciﬁcity

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Inﬁnitely more powerful

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Example

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Example

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Example

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Example

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If you must know...

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OOCSS or SMACSS

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Seems STUPID

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The same PATTERNS are used on ALL SITES

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No content

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The nav object

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The nav object .nav { list-‐style: none; padding-‐left: 0; } .nav > li, .nav > li > a { display: inline-‐block; }

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The nav object 'nav main-‐nav', 'container' => false, 'depth' => 2 ) );

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The media object

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The media object m m m

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Facebook’s CSS HUNDREDS OF LINES smaller

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The media object .media, .media__body { overflow: hidden; } .media__image { float: left; margin-‐right: 10px }

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You’ve been USING SMACCS FOR YEARS

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• grids • clear ﬁxes • WordPress widgets

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Adding SMACSS to EXISTING THEME

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MMXIII

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MMXIII { display: inline-‐block; font: normal 16px/1 Genericons; vertical-‐align: text-‐bottom; } .genericon:before, .menu-‐toggle:after, .featured-‐post:before, .date a:before, .entry-‐meta .author a:before, .format-‐audio .entry-‐content:before, .comments-‐link a:before, .tags-‐links a:first-‐child:before, .categories-‐links a:first-‐child:before, .edit-‐link a:before, .attachment .entry-‐title:before, .attachment-‐meta:before, .attachment-‐meta a:before, .comment-‐awaiting-‐moderation:before, .comment-‐reply-‐link:before, .comment-‐reply-‐login:before, #reply-‐title small a:before, .bypostauthor > .comment-‐body .fn:before, .error404 .page-‐title:before

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MMXIII

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MMXIII

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MMXIII .ico:before { display: inline-‐block; font: normal 16px/1 Genericons; vertical-‐align: text-‐bottom; }

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STRONGER FASTER BETTER CSS

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SMALLER FASTER BETTER speciﬁcity

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SMACSS with WORDPRESS

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Caption shortcode

A boat

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Gallery shortcode

: A boat

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ADD_FILTER

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Caption redone

A boat

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A boat

Gallery redone

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I am very insistent on TWITTER my username is @PWCC

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QUESTIONS