diff --git a/lib/Epub/Epub/blocks/BlockStyle.h b/lib/Epub/Epub/blocks/BlockStyle.h
index fc40b6e1..5c26a21d 100644
--- a/lib/Epub/Epub/blocks/BlockStyle.h
+++ b/lib/Epub/Epub/blocks/BlockStyle.h
@@ -2,26 +2,89 @@
 
 #include <cstdint>
 
+#include "Epub/css/CssStyle.h"
+
 /**
- * BlockStyle - Block-level CSS properties for paragraphs
- *
- * Used to track margin/padding spacing and text indentation for block elements.
- * Padding is treated similarly to margins for rendering purposes.
+ * BlockStyle - Block-level styling properties
  */
 struct BlockStyle {
-  int16_t marginTop = 0;           // pixels
-  int16_t marginBottom = 0;        // pixels
-  int16_t marginLeft = 0;          // pixels
-  int16_t marginRight = 0;         // pixels
-  int16_t paddingTop = 0;          // pixels (treated same as margin)
-  int16_t paddingBottom = 0;       // pixels (treated same as margin)
-  int16_t paddingLeft = 0;         // pixels (treated same as margin)
-  int16_t paddingRight = 0;        // pixels (treated same as margin)
-  int16_t textIndent = 0;          // pixels
+  CssTextAlign alignment = CssTextAlign::Justify;
+
+  // Spacing (in pixels)
+  int16_t marginTop = 0;
+  int16_t marginBottom = 0;
+  int16_t marginLeft = 0;
+  int16_t marginRight = 0;
+  int16_t paddingTop = 0;     // treated same as margin for rendering
+  int16_t paddingBottom = 0;  // treated same as margin for rendering
+  int16_t paddingLeft = 0;    // treated same as margin for rendering
+  int16_t paddingRight = 0;   // treated same as margin for rendering
+  int16_t textIndent = 0;
   bool textIndentDefined = false;  // true if text-indent was explicitly set in CSS
+  bool textAlignDefined = false;   // true if text-align was explicitly set in CSS
 
   // Combined horizontal insets (margin + padding)
   [[nodiscard]] int16_t leftInset() const { return marginLeft + paddingLeft; }
   [[nodiscard]] int16_t rightInset() const { return marginRight + paddingRight; }
   [[nodiscard]] int16_t totalHorizontalInset() const { return leftInset() + rightInset(); }
+
+  // Combine with another block style. Useful for parent -> child styles, where the child style should be
+  // applied on top of the parent's style to get the combined style.
+  BlockStyle getCombinedBlockStyle(const BlockStyle& child) const {
+    BlockStyle combinedBlockStyle;
+
+    combinedBlockStyle.marginTop = static_cast<int16_t>(child.marginTop + marginTop);
+    combinedBlockStyle.marginBottom = static_cast<int16_t>(child.marginBottom + marginBottom);
+    combinedBlockStyle.marginLeft = static_cast<int16_t>(child.marginLeft + marginLeft);
+    combinedBlockStyle.marginRight = static_cast<int16_t>(child.marginRight + marginRight);
+
+    combinedBlockStyle.paddingTop = static_cast<int16_t>(child.paddingTop + paddingTop);
+    combinedBlockStyle.paddingBottom = static_cast<int16_t>(child.paddingBottom + paddingBottom);
+    combinedBlockStyle.paddingLeft = static_cast<int16_t>(child.paddingLeft + paddingLeft);
+    combinedBlockStyle.paddingRight = static_cast<int16_t>(child.paddingRight + paddingRight);
+    // Text indent: use child's if defined
+    if (child.textIndentDefined) {
+      combinedBlockStyle.textIndent = child.textIndent;
+      combinedBlockStyle.textIndentDefined = true;
+    } else {
+      combinedBlockStyle.textIndent = textIndent;
+      combinedBlockStyle.textIndentDefined = textIndentDefined;
+    }
+    // Text align: use child's if defined
+    if (child.textAlignDefined) {
+      combinedBlockStyle.alignment = child.alignment;
+      combinedBlockStyle.textAlignDefined = true;
+    } else {
+      combinedBlockStyle.alignment = alignment;
+      combinedBlockStyle.textAlignDefined = textAlignDefined;
+    }
+    return combinedBlockStyle;
+  }
+
+  // Create a BlockStyle from CSS style properties, resolving CssLength values to pixels
+  // emSize is the current font line height, used for em/rem unit conversion
+  // paragraphAlignment is the user's paragraphAlignment setting preference
+  static BlockStyle fromCssStyle(const CssStyle& cssStyle, const float emSize, const CssTextAlign paragraphAlignment) {
+    BlockStyle blockStyle;
+    // Resolve all CssLength values to pixels using the current font's em size
+    blockStyle.marginTop = cssStyle.marginTop.toPixelsInt16(emSize);
+    blockStyle.marginBottom = cssStyle.marginBottom.toPixelsInt16(emSize);
+    blockStyle.marginLeft = cssStyle.marginLeft.toPixelsInt16(emSize);
+    blockStyle.marginRight = cssStyle.marginRight.toPixelsInt16(emSize);
+
+    blockStyle.paddingTop = cssStyle.paddingTop.toPixelsInt16(emSize);
+    blockStyle.paddingBottom = cssStyle.paddingBottom.toPixelsInt16(emSize);
+    blockStyle.paddingLeft = cssStyle.paddingLeft.toPixelsInt16(emSize);
+    blockStyle.paddingRight = cssStyle.paddingRight.toPixelsInt16(emSize);
+
+    blockStyle.textIndent = cssStyle.textIndent.toPixelsInt16(emSize);
+    blockStyle.textIndentDefined = cssStyle.hasTextIndent();
+    blockStyle.textAlignDefined = cssStyle.hasTextAlign();
+    if (blockStyle.textAlignDefined) {
+      blockStyle.alignment = cssStyle.textAlign;
+    } else {
+      blockStyle.alignment = paragraphAlignment;
+    }
+    return blockStyle;
+  }
 };