creating a mixin for a box-shadow value of none in LESS CSS

I'm encountering a challenge with implementing the box-shadow mixin in LESS css.

Here's the mixin for box-shadow:

.boxShadow (@x, @y, @blur, @spread: 0, @alpha) {
    -webkit-box-shadow: @x @y @blur @spread rgba(0, 0, 0, @alpha);
    -moz-box-shadow:    @x @y @blur @spread rgba(0, 0, 0, @alpha);
    box-shadow:     @x @y @blur @spread rgba(0, 0, 0, @alpha);
}

Although I can successfully pass parameters like this:

.boxShadow(0, 0, 5px, 2px, 0.2);

I'm unsure how to call the same mixin for box-shadow: none.

cssless

Answer №1

If you want to access all the arguments of a mixin in one variable, here's a method you can use.

Simply define your LESS mixin like this:

.box-shadow(...)
{
    -webkit-box-shadow: @arguments;
    -moz-box-shadow: @arguments;
    box-shadow: @arguments;
}

Then you can easily use it later on:

.box-shadow(0 0 5px 2px rgba(0, 0, 0, 0.2));

or

.box-shadow(none);

Answer №2

.customShadow(@x, @y, @blur, @spread: 0, @alpha) {
    -webkit-box-shadow: @x @y @blur @spread rgba(0, 0, 0, @alpha);
       -moz-box-shadow: @x @y @blur @spread rgba(0, 0, 0, @alpha);
            box-shadow: @x @y @blur @spread rgba(0, 0, 0, @alpha);
}

.customShadow(none) {
    -webkit-box-shadow: none;
       -moz-box-shadow: none;
            box-shadow: none;
}

In Less, it's possible to create mixins with the same name but different parameters. By "overriding" a mixin, Less will automatically choose the one that matches the parameter pattern.

Answer №3

.custom-box-shadow (@x: 5px, @y: 3px, @blur: 4px, @spread: 1px, @alpha: 0.5) {
    -webkit-box-shadow: @x @y @blur @spread rgba(255, 255, 255, @alpha);
    -moz-box-shadow:    @x @y @blur @spread rgba(255, 255, 255, @alpha);
    box-shadow:         @x @y @blur @spread rgba(255, 255, 255, @alpha);
}
.custom-inner-shadow (@x: 2px, @y: 2px, @blur: 3px, @spread: 0, @alpha: 0.75) {
    -webkit-box-shadow: inset @x @y @blur @spread rgba(255, 255, 255, @alpha);
    -moz-box-shadow:    inset @x @y @blur @spread rgba(255, 255, 255, @alpha);
    box-shadow:         inset @x @y @blur @spread rgba(255, 255, 255, @alpha);
}

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