Index: frontend/node_modules/postcss-page-break/index.js
===================================================================
--- frontend/node_modules/postcss-page-break/index.js	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
+++ frontend/node_modules/postcss-page-break/index.js	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
@@ -0,0 +1,35 @@
+module.exports = function(options) {
+    return {
+        postcssPlugin: 'postcss-page-break',
+        Declaration(decl) {
+            if (decl.prop.startsWith('break-') && /^break-(inside|before|after)/.test(decl.prop)) {
+                // do not process column|region related properties
+                if (decl.value.search(/column|region/) >= 0) {
+                    return;
+                }
+
+                let newValue;
+                switch (decl.value) {
+                    case 'page':
+                        newValue = 'always';
+                        break;
+                    case 'avoid-page':
+                        newValue = 'avoid';
+                        break;
+                    default:
+                        newValue = decl.value;
+                }
+
+                const newProperty = 'page-' + decl.prop;
+                if (decl.parent.every((sibling) => sibling.prop !== newProperty)) {
+                    decl.cloneBefore({
+                        prop: newProperty,
+                        value: newValue,
+                    });
+                }
+            }
+        },
+    };
+
+};
+module.exports.postcss = true;