First Visual Force Page

Before start of any Visualforce development  in Salesforce make sure --> goto Profile --> Advanced User Details --> check Developer Mode is checked.

To create visual force -> go to Setup -> go to Develop -> Look for Pages Tab

You will get default Visualforce Page --> Save --> Preview

<apex:page>
  <!-- Begin Default Content REMOVE THIS -->
  <h1 class="heading">Hi Vishwa Congratulations</h1>
  This is your First Page in Visualforce
  <!-- End Default Content REMOVE THIS -->
</apex:page>