TIL about PostCSS mixins

Lightning talk on how to get rid of duplicated code

Transcript

1. TIL
 about PostCSS mixins
2. &!--right-inline .metainfo!__text:first-child { @media (!--media-sm-down) { > * { display: inline; } !/* and when there’s slot content, put a separator after author credits !*/ .metainfo!__credits:not(:last-child)!::after { content: '|'; padding: 0 0.25em; font-weight: normal; } } } !/* when there’s no author image, render metainfo text content inline !*/ &!--inline .metainfo!__text:first-child { &, > * { display: inline; } !/* and when there’s slot content, put a separator after author credits !*/ .metainfo!__credits:not(:last-child)!::after { content: '|'; padding: 0 0.25em; font-weight: normal; } } }
3. @define-mixin metainfo-separator { content: '|'; padding: 0 0.25em; font-weight: normal; } &!--right-inline .metainfo!__text:first-child { @media (!--media-sm-down) { > * { display: inline; } !/* and when there’s slot content, put a separator after author credits !*/ .metainfo!__credits:not(:last-child)!::after { content: '|'; padding: 0 0.25em; font-weight: normal; } } } !/* when there’s no author image, render metainfo text content inline !*/ &!--inline .metainfo!__text:first-child { &, > * { display: inline; } !/* and when there’s slot content, put a separator after author credits !*/ .metainfo!__credits:not(:last-child)!::after { content: '|'; padding: 0 0.25em; font-weight: normal; } } }
4. @define-mixin metainfo-separator { content: '|'; padding: 0 0.25em; font-weight: normal; } &!--right-inline .metainfo!__text:first-child { @media (!--media-sm-down) { > * { display: inline; } !/* and when there’s slot content, put a separator after author credits !*/ .metainfo!__credits:not(:last-child)!::after { @mixin metainfo-separator } } } !/* when there’s no author image, render metainfo text content inline !*/ &!--inline .metainfo!__text:first-child { &, > * { display: inline; } !/* and when there’s slot content, put a separator after author credits !*/ .metainfo!__credits:not(:last-child)!::after { @mixin metainfo-separator } } }
5. @define-mixin metainfo-separator { content: '|'; padding: 0 0.25em; font-weight: normal; } &!--right-inline .metainfo!__text:first-child { @media (!--media-sm-down) { > * { display: inline; } !/* and when there’s slot content, put a separator after author credits !*/ .metainfo!__credits:not(:last-child)!::after { @mixin metainfo-separator } } } !/* when there’s no author image, render metainfo text content inline !*/ &!--inline .metainfo!__text:first-child { &, > * { display: inline; } !/* and when there’s slot content, put a separator after author credits !*/ .metainfo!__credits:not(:last-child)!::after { @mixin metainfo-separator } } }
6. @define-mixin metainfo-separator { .metainfo!__credits:not(:last-child)!::after { content: '|'; padding: 0 0.25em; font-weight: normal; } } &!--right-inline .metainfo!__text:first-child { @media (!--media-sm-down) { > * { display: inline; } !/* and when there’s slot content, put a separator after author credits !*/ @mixin metainfo-separator } } !/* when there’s no author image, render metainfo text content inline !*/ &!--inline .metainfo!__text:first-child { &, > * { display: inline; } !/* and when there’s slot content, put a separator after author credits !*/ @mixin metainfo-separator } }
7. @define-mixin metainfo-separator { .metainfo!__credits:not(:last-child)!::after { content: '|'; padding: 0 0.25em; font-weight: normal; } } &!--right-inline .metainfo!__text:first-child { @media (!--media-sm-down) { > * { display: inline; } !/* and when there’s slot content, put a separator after author credits !*/ @mixin metainfo-separator } } !/* when there’s no author image, render metainfo text content inline !*/ &!--inline .metainfo!__text:first-child { &, > * { display: inline; } !/* and when there’s slot content, put a separator after author credits !*/ @mixin metainfo-separator } }
8. @define-mixin metainfo-separator { .metainfo!__credits:not(:last-child)!::after { content: '|'; padding: 0 0.25em; font-weight: normal; } } &!--right-inline .metainfo!__text:first-child { @media (!--media-sm-down) { > * { display: inline; } !/* and when there’s slot content, put a separator after author credits !*/ @mixin metainfo-separator } } !/* when there’s no author image, render metainfo text content inline !*/ &!--inline .metainfo!__text:first-child { & { display: inline; } > * { display: inline; } !/* and when there’s slot content, put a separator after author credits !*/ @mixin metainfo-separator } }
9. @define-mixin metainfo-separator { !/* when there’s no author image, render metainfo text content inline !*/ > * { display: inline; } !/* and when there’s slot content, put a separator after author credits !*/ .metainfo!__credits:not(:last-child)!::after { content: '|'; padding: 0 0.25em; font-weight: normal; } } &!--right-inline .metainfo!__text:first-child { @media (!--media-sm-down) { @mixin metainfo-separator } } !/* when there’s no author image, render metainfo text content inline !*/ &!--inline .metainfo!__text:first-child { & { display: inline; } @mixin metainfo-separator } }
10. @define-mixin metainfo-separator { !/* when there’s no author image, render metainfo text content inline !*/ > * { display: inline; } !/* and when there’s slot content, put a separator after author credits !*/ .metainfo!__credits:not(:last-child)!::after { content: '|'; padding: 0 0.25em; font-weight: normal; } } &!--right-inline .metainfo!__text:first-child { @media (!--media-sm-down) { @mixin metainfo-separator } } !/* when there’s no author image, render metainfo text content inline !*/ &!--inline .metainfo!__text:first-child { & { display: inline; } @mixin metainfo-separator } }
11. @define-mixin metainfo-separator { !/* when there’s no author image, render metainfo text content inline !*/ > * { display: inline; } !/* and when there’s slot content, put a separator after author credits !*/ .metainfo!__credits:not(:last-child)!::after { content: '|'; padding: 0 0.25em; font-weight: normal; } } &!--right-inline { @media (!--media-sm-down) { .metainfo!__text:first-child { @mixin metainfo-separator } } } !/* when there’s no author image, render metainfo text content inline !*/ &!--inline .metainfo!__text:first-child { display: inline; } .metainfo!__text:first-child { @mixin metainfo-separator } } }
12. @define-mixin metainfo-separator { !/* when there’s no author image, render metainfo text content inline !*/ .metainfo!__text:first-child { > * { display: inline; } !/* and when there’s slot content, put a separator after author credits !*/ .metainfo!__credits:not(:last-child)!::after { content: '|'; padding: 0 0.25em; font-weight: normal; } } } &!--right-inline { @media (!--media-sm-down) { @mixin metainfo-separator } } !/* when there’s no author image, render metainfo text content inline !*/ &!--inline .metainfo!__text:first-child { display: inline; } @mixin metainfo-separator } }
13. @define-mixin metainfo-separator { !/* when there’s no author image, render metainfo text content inline !*/ .metainfo!__text:first-child { > * { display: inline; } !/* and when there’s slot content, put a separator after author credits !*/ .metainfo!__credits:not(:last-child)!::after { content: '|'; padding: 0 0.25em; font-weight: normal; } } } &!--right-inline { @media (!--media-sm-down) { @mixin metainfo-separator } } !/* when there’s no author image, render metainfo text content inline !*/ &!--inline .metainfo!__text:first-child { display: inline; } @mixin metainfo-separator } }
14. @define-mixin metainfo-inline { !/* when there’s no author image, render metainfo text content inline !*/ .metainfo!__text:first-child { > * { display: inline; } !/* and when there’s slot content, put a separator after author credits !*/ .metainfo!__credits:not(:last-child)!::after { content: '|'; padding: 0 0.25em; font-weight: normal; } } } &!--right-inline { @media (!--media-sm-down) { @mixin metainfo-inline } } !/* when there’s no author image, render metainfo text content inline !*/ &!--inline .metainfo!__text:first-child { display: inline; } @mixin metainfo-inline } }