fix event image style on mobile
diff --git a/_jade/en/index.jade b/_jade/en/index.jade
index 800d55d..44e77b7 100644
--- a/_jade/en/index.jade
+++ b/_jade/en/index.jade
@@ -45,11 +45,11 @@
 
             section#events-section
                 .container
-                    a.event(href='https://apachecon.com/acasia2022/?ref=echarts', style="width: 1000px; margin: 15px auto")
+                    a.event(href='https://apachecon.com/acasia2022/?ref=echarts', style="max-width: 1000px; margin: 15px auto")
                         picture
                             source.lazy(data-srcset="#{cdnPayRoot}/#{ecWWWLang}/images/event/20220509-acasia2022.webp?_v_=#{cdnPayVersion}", type="image/webp")
-                            img.lazy(data-srcset="#{cdnPayRoot}/#{ecWWWLang}/images/event/20220509-acasia2022.png?_v_=#{cdnPayVersion}", type="image/png")
-            //-                 img.lazy(data-src="#{cdnPayRoot}/#{ecWWWLang}/images/event/20210705-apachecon-en.jpeg?_v_=#{cdnPayVersion}", alt="ApacheCon Asia 2021")
+                            img.lazy(data-srcset="#{cdnPayRoot}/#{ecWWWLang}/images/event/20220509-acasia2022.png?_v_=#{cdnPayVersion}", type="image/png", style="width: 100%")
+                            //- img.lazy(data-src="#{cdnPayRoot}/#{ecWWWLang}/images/event/20210705-apachecon-en.jpeg?_v_=#{cdnPayVersion}", alt="ApacheCon Asia 2021")
 
             section#feature-section
                 .container
diff --git a/_jade/zh/index.jade b/_jade/zh/index.jade
index 87363e5..addbfc8 100644
--- a/_jade/zh/index.jade
+++ b/_jade/zh/index.jade
@@ -44,10 +44,10 @@
 
             section#events-section
                 .container
-                    a.event(href='https://apachecon.com/acasia2022/zh/?ref=echarts', style="width: 1000px; margin: 15px auto")
+                    a.event(href='https://apachecon.com/acasia2022/zh/?ref=echarts', style="max-width: 1000px; margin: 15px auto")
                         picture
                             source.lazy(data-srcset="#{cdnPayRoot}/#{ecWWWLang}/images/event/20220509-acasia2022.webp?_v_=#{cdnPayVersion}", type="image/webp")
-                            img.lazy(data-srcset="#{cdnPayRoot}/#{ecWWWLang}/images/event/20220509-acasia2022.png?_v_=#{cdnPayVersion}", type="image/png")
+                            img.lazy(data-srcset="#{cdnPayRoot}/#{ecWWWLang}/images/event/20220509-acasia2022.png?_v_=#{cdnPayVersion}", type="image/png", style="width: 100%")
                             //- img.lazy(data-src="#{cdnPayRoot}/#{ecWWWLang}/images/event/20210705-apachecon.jpeg?_v_=#{cdnPayVersion}", alt="ApacheCon Asia 2021")
 
             section#feature-section