sass - Create square divs using susy-grid

Question

Is it possible to have @include span(3 of 12) return in pixels instead of a %?

I'm trying to create square elements, and I want the height of this element to be equal to its width.

.myElement {
  width: span(3 of 12)
  height: span(3 of 12)
}

Of course this causes height to be a %, which is really a % of its parent container, so it is not equal to the width! Any ideas?

Answer 1

根本不是不可能的——只是很棘手（如果你想要一个流动的正方形）。

// Static width/height is simple
.square-a {
  @include span(2 static);
  height: span(2 static);
}

// Fluid takes a bit more work
.square-b {
  @include span(2);
  height: 0;
  // %-Padding is always relative to parent width
  padding-top: span(2);
  position: relative;

  // Inner element positioned to fit space
  span {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
  }
}

这是两者的演示。