Simple, fluid, nestable, flexible, Sass-based, responsive grid system.

• Fully responsive
• Infinitely nestable
• Endless possible combinations
• Simple to understand, human-friendly classes
• Option to keep classes out of your HTML
• Robust
• Simple
• No .clear or .last classes
• It just works

Please see Responsive grid systems; a solution? for a comprehensive overview of the principles of the grid system.

Simply fill in/adjust the relevant variables.

• $gutter controls how much space there is between columns.
• $use-silent-classes tells csswizardry-grids whether to go ahead and compile solid, traditional classes (e.g. .one-whole) or to create Sass ‘silent’ classes which only compile to CSS once explictly called.
• $lap-start and $desk-start tell csswizardry-grids when to fire particular media queries to service those particular sizes. Note that csswizardry-grids works out the ends of any other breakpoints by using these numbers.

If you are using traditional classes then an example, basic usage might look like this:

<div class="grid">

    <div class="grid__item  one-whole  lap-one-half  desk-two-thirds">
        ...
    </div>

    <div class="grid__item  one-whole  lap-one-half  desk-one-third">
        ...
    </div>

</div>

If you are using silent classes then your HTML might look like this:

<div class="page">

    <div class="content">
        ...
    </div>

    <div class="sub-content">
        ...
    </div>

</div>

…and your Sass, something like this:

.page{
    @extend %grid;
}

    .content,
    .sub-content{
        @extend %grid__item;
        @extend %one-whole;
        @extend %lap-one-half;
    }

    .content{
        @extend %desk-two-thirds;
    }

    .sub-content{
        @extend %desk-one-third;
    }

There is a very simple demo which can be found at csswizardry.github.com/csswizardry-grids.