console.warn any messages when using deprecated
options; these are now sent to PostCSS. You will be able to see them if you
use a PostCSS runner with built-in messages support, or alternately by
loading postcss-reporter or postcss-browser-reporter in your plugins list.grid identifier reduction by adding it to the list
of optimisations turned off when options.safe is set to true.unicode-range descriptors. Values will
be converted when the code matches 0 & f in the same place on both sides
of the range. So, u+2000-2fff can be converted to u+2???, but
u+2100-2fff will be left as it is.v3.9.0, where undefined values
would attempt to be parsed.display: list-item inline flow would be normalized
to inline list-item rather than inline-list-item (thanks to @mattbasta).display property. For
example block flow can be simplified to block.safe flag was not being persisted across
multiple files (thanks to @techmatt101).hasOwnProperty instead of using an array of object keys.indexes-of dependency.2.0.0 as a fix has landed in the new
version of uniqid.2.0.0 in order to
mitigate an issue with uniqid 3.0.0.stripWWW option.background-repeat definitions; works with both this property
& the background shorthand, and aims to compress the extended two value
syntax into the single value syntax.initial values for properties when the actual initial value
is shorter; for example, min-width: initial becomes min-width: 0.steps(1).steps functions with a
single argument.postcss-discard-overridden to safely discard overridden rules with
the same identifier (thanks to @Justineo).cubic-bezier
functions that are equivalent to the timing keywords and compresses, as well
as normalizing the steps timing function.perspective-origin property to the list of supported properties
transformed by the reduce-positions transform.background-position
were being incorrectly converted.background-position values in the background
shorthand property.background-position and the background shorthand.core module, now performs less AST passes.options.safe threw an error when cssnano was
not used as part of a PostCSS instance, but standalone (such as in modules
like gulp-cssnano). cssnano now renames safe internally to isSafe.2.1.2, as the 2.1.3 & 2.1.4 patches had
optimization regressions that are now resolved in 2.1.5.translate3d(0, 0, 0) becomes translateZ(0).outline: none to outline: 0, as there are
some cases where the values are not equivalent (thanks to @TrySound).16px to 1pc by default. Length
optimisations can be turned on via {convertValues: {length: true}}.add option to true to prepend a UTF-8
charset to the output automatically (thanks to @TrySound).safe option was added, which disables more aggressive optimisations, as
a convenient preset configuration (thanks to @TrySound).deg to turn & vice versa, & improved
minification performance in functions (thanks to @TrySound).process method has the same signature as a PostCSS processor instance.merge & fonts that were deprecated in
release 2.5.0 were removed. The new architecture allows you to specify any
module name to disable it.inherit keyword.functionOptimiser.merge & fonts) will be removed in 3.0.::before to :before; this release removes the dedicated
postcss-pseudoelements module.postcss-font-family to be disabled.postcss([ cssnano ]).ch units; previously they were removed.postcss-plugin keyword to package.json.cssnano.process(css, opts) instead of cssnano(css, opts).background:none to background:0 0.url() functions.@keyframes and @counter-style at-rules.remove option (thanks to @dmitrykiselyov).removeAllButFirst now operates on each CSS tree, rather than the
first one passed to cssnano.border:none to border:0 0.decl.before from prior AST.@keyframes and @counter-style if they
have duplicated properties but are named differently.rem,
trailing zeroes and slash/comma separated values
(thanks to @TrySound & @tunnckoCore).-webkit-tap-highlight-color values were being
incorrectly transformed to transparent. This is not supported in Safari.Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.