mshtml: Implement IHTMLStyle_get_marginLeft.

dlls/mshtml/htmlstyle.c

@@ -1196,8 +1196,8 @@ static HRESULT WINAPI HTMLStyle_get_margin(IHTMLStyle *iface, BSTR *p)
 static HRESULT WINAPI HTMLStyle_get_marginLeft(IHTMLStyle *iface, VARIANT *p)
 {
     HTMLStyle *This = HTMLSTYLE_THIS(iface);
-    FIXME("(%p)->(%p)\n", This, p);
-    return E_NOTIMPL;
+    TRACE("(%p)->(%p)\n", This, p);
+    return get_nsstyle_attr_var(This->nsstyle, STYLEID_MARGIN_LEFT, p, 0);
 }
 
 static HRESULT WINAPI HTMLStyle_put_paddingTop(IHTMLStyle *iface, VARIANT v)

dlls/mshtml/tests/dom.c

@@ -2454,6 +2454,12 @@ static void test_default_style(IHTMLStyle *style)
     ok(V_VT(&v) == VT_BSTR, "V_VT(marginRight) = %d\n", V_VT(&v));
     ok(!V_BSTR(&v), "V_BSTR(marginRight) = %s\n", dbgstr_w(V_BSTR(&v)));
 
+    V_VT(&v) = VT_NULL;
+    hres = IHTMLStyle_get_marginLeft(style, &v);
+    ok(hres == S_OK, "get_marginLeft failed: %08x\n", hres);
+    ok(V_VT(&v) == VT_BSTR, "V_VT(marginLeft) = %d\n", V_VT(&v));
+    ok(!V_BSTR(&v), "V_BSTR(marginLeft) = %s\n", dbgstr_w(V_BSTR(&v)));
+
     str = (void*)0xdeadbeef;
     hres = IHTMLStyle_get_fontFamily(style, &str);
     ok(hres == S_OK, "get_fontFamily failed: %08x\n", hres);