diff --git a/src/astgen.zig b/src/astgen.zig
index ac58529ea2b5c0ab539cd7a989ccf179fde9a5f1..d5fca81c84dda1144715e27267f833834ec5d7dc 100644
--- a/src/astgen.zig
+++ b/src/astgen.zig
@@ -19,12 +19,12 @@ pub const Value = union(enum) {
 pub const Element = struct {
     name: string,
     attrs: []const Attr,
-    children: []const Value,
+    children: Body,
 };
 
 pub const Attr = struct {
     key: string,
-    value: string,
+    value: union(enum) { string: string, body: Body },
 };
 
 pub const Block = struct {
@@ -103,10 +103,17 @@ const Parser = struct {
     pub fn doAttr(comptime self: *Parser) Attr {
         const k = self.eat(.word);
         self.eatSymbol("=");
+        const body = self.doChildren();
+        if (body.len > 0) {
+            return Attr{
+                .key = k,
+                .value = .{ .body = body },
+            };
+        }
         const v = self.eat(.string);
         return Attr{
             .key = k,
-            .value = v,
+            .value = .{ .string = v },
         };
     }
 
diff --git a/src/lib.zig b/src/lib.zig
index 87340096043ecfab7ebb7e8c9253dfc35bbe0881..4519d552bfb2e186fdb2753d81dd91682b1ed105 100644
--- a/src/lib.zig
+++ b/src/lib.zig
@@ -34,8 +34,15 @@ fn do(writer: anytype, comptime value: astgen.Value, data: anytype, ctx: anytype
             try writer.writeAll("<");
             try writer.writeAll(v.name);
 
-            for (v.attrs) |it| {
-                try writer.print(" {s}=\"{}\"", .{ it.key, std.zig.fmtEscapes(it.value[1 .. it.value.len - 1]) });
+            inline for (v.attrs) |it| {
+                switch (comptime it.value) {
+                    .string => try writer.print(" {s}=\"{}\"", .{ it.key, std.zig.fmtEscapes(it.value.string[1 .. it.value.string.len - 1]) }),
+                    .body => {
+                        try writer.print(" {s}=\"", .{it.key});
+                        try do(alloc, writer, astgen.Value{ .body = it.value.body }, data, ctx, indent, flag1);
+                        try writer.print("\"", .{});
+                    },
+                }
             }
 
             if (v.children.len == 0) {