Add second position: absolute pass

src/Layout.c

@@ -394,6 +394,26 @@ static void layoutNodeImpl(css_node_t *node, float parentMaxWidth) {
         // You never want to go smaller than padding
         getPaddingAndBorderAxis(child, crossAxis)
       );
+    } else if (getPositionType(child) == CSS_POSITION_ABSOLUTE) {
+      // Pre-fill dimensions when using absolute position and both offsets for the axis are defined (either both
+      // left and right or top and bottom).
+      for (int ii = 0; ii < 2; ii++) {
+        css_flex_direction_t axis = ii ? CSS_FLEX_DIRECTION_ROW : CSS_FLEX_DIRECTION_COLUMN;
+        if (!isUndefined(node->layout.dimensions[dim[axis]]) &&
+            !isDimDefined(child, axis) &&
+            isPosDefined(child, leading[axis]) &&
+            isPosDefined(child, trailing[axis])) {
+          child->layout.dimensions[dim[axis]] = fmaxf(
+            node->layout.dimensions[dim[axis]] -
+            getPaddingAndBorderAxis(node, axis) -
+            getMarginAxis(child, axis) -
+            getPosition(child, leading[axis]) -
+            getPosition(child, trailing[axis]),
+            // You never want to go smaller than padding
+            getPaddingAndBorderAxis(child, axis)
+          );
+        }
+      }
     }
   }