Avoid using HTML tags which will be removed by the VisualForce page
Impact area
Performance
Severity
Medium
Affected element
Apex Component
Rule ID
SF-0126
Impact
Unnecessary HTML increases the size of the component tree and the processing time for Ajax requests.
Remediation
Remove from your source code tags which the Visualforce page would remove at runtime (such as <head> or <body> inside an <apex:page> tag.
Time to fix
60 min