Built in CSS minifiers - Taritsyn/WebMarkupMin GitHub Wiki

CSS minifiers are used in HTML and XHTML minifiers for minification of embedded and inline CSS code. Be a CSS minifier can any class, that implements the ICssMinifier interface.

Mads Kristensen's CSS Minifier

KristensenCssMinifier class implements a simple CSS minifier based on the Mads Kristensen's Efficient stylesheet minifier. When creating an instance of the KristensenCssMinifier class, we can pass a minification settings through the constructor:

var cssSettings = new KristensenCssMinificationSettings
{
    RemoveRedundantSelectors = true,
    RemoveUnitsFromZeroValues = true
})
var cssMinifier = new KristensenCssMinifier(cssSettings);

And now let's consider in detail properties of the KristensenCssMinificationSettings class:

Property name Data type Default value Description
RemoveRedundantSelectors Boolean false Flag for whether to remove redundant selectors (e.g. a#btnResetPassword → #btnResetPassword).
RemoveTrailingSemicolons Boolean true Flag for whether to remove trailing semicolons after the last declarations.
RemoveUnitsFromZeroValues Boolean false

Flag for whether to remove units from zero values.

Units to be removed: px, pt, pc, cm, mm, in, em, ex, ch, rem, vw, vh, vmin and vmax.

If in your code declares custom properties (variables) or calls the following functions: min, max, clamp and calc, then it is recommended to disable this setting.

Null CSS Minifier

If in your HTML/XHTML code is missing embedded or inline CSS code, you can use instead of the real CSS minifier the stub in the form of NullCssMinifier class. This will allow you to save memory.

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