diff --git a/resources/web/flush/WipingDialog.html b/resources/web/flush/WipingDialog.html
index dc676ae46..3bcc1796f 100644
--- a/resources/web/flush/WipingDialog.html
+++ b/resources/web/flush/WipingDialog.html
@@ -6,6 +6,7 @@
         html, body {
           margin: 0px;
           padding: 0px;
+          height: 100%;
           background: #f5f5f5;
           font-family: sans-serif;
         }
diff --git a/src/slic3r/GUI/WipeTowerDialog.cpp b/src/slic3r/GUI/WipeTowerDialog.cpp
index 1625dda16..904fc78c6 100644
--- a/src/slic3r/GUI/WipeTowerDialog.cpp
+++ b/src/slic3r/GUI/WipeTowerDialog.cpp
@@ -102,7 +102,7 @@ WipingDialog::WipingDialog(wxWindow* parent, const std::vector<std::vector<int>>
     SetIcon(wxIcon(Slic3r::encode_path(icon_path.c_str()), wxBITMAP_TYPE_ICO));
     wxBoxSizer* main_sizer = new wxBoxSizer(wxVERTICAL);
     this->SetSizer(main_sizer);
-
+    this->SetBackgroundColour(*wxWHITE);
     auto filament_count= wxGetApp().preset_bundle->project_config.option<ConfigOptionStrings>("filament_colour")->values.size();
     wxSize extra_size = { FromDIP(100),FromDIP(235) };
     if (filament_count <= 2)
@@ -132,7 +132,7 @@ WipingDialog::WipingDialog(wxWindow* parent, const std::vector<std::vector<int>>
         wxNO_BORDER);
 
     m_webview->AddScriptMessageHandler("wipingDialog");
-    main_sizer->Add(m_webview, 1);
+    main_sizer->Add(m_webview, 1, wxEXPAND);
 
     fs::path filepath = fs::path(resources_dir()) / "web/flush/WipingDialog.html";
     wxString filepath_str = wxString::FromUTF8(filepath.string());