TIL 
about PostCSS mixins

TIL 
about PostCSS mixins

Lightning talk on how to get rid of duplicated code

051dbe29a972707cde167602b38c9778?s=128

Gunnar Bittersmann

December 02, 2019
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Transcript

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    &!--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; } } }
  2. 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; } } }
  3. 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 } } }
  4. 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 } } }
  5. 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 } }
  6. 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 } }
  7. 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 } }
  8. 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 } }
  9. 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 } }
  10. 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 } } }
  11. 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 } }
  12. 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 } }
  13. 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 } }