remove style.

WebApplication/Application.cpp

@@ -78,7 +78,6 @@ void Application::handlePathChange(const std::string &path) {
     LOG(info) << "handlePathChange: " << path;
     if (path.starts_with("/wt/login") || path.starts_with("/wt/register")) {
         m_root->clear();
-        m_root->setStyleClass("WtCenterContainer");
         m_root->addNew<LoginPage>(m_session->users(), m_session->login());
     } else if (path.starts_with("/wt/visitor/analysis")) {
         m_root->clear();

resources/app.css

@@ -1,10 +1,3 @@
-.WtCenterContainer {
-    display: flex;
-    flex: 1;
-    justify-content: center;
-    align-items: center;
-}
-
 .Wt-itemview .Wt-headerdiv {
     overflow: hidden;
     -webkit-user-select: none;