Creating an HTML5 Page

You make steps such as: 

1.   Select Window->Preferences from the menu bar.

2.   Expand Web and select HTML Files.

3.   Select ISO 10646/Unicode(UTF-8) from the Encoding drop-down.

4.   Click OK.
Creating an HTML5 page is easy. Simply follow these steps:
1.   Select File->New->Other.
2.   Expand Web and select HTML File. Click Next.
3.   Enter a file name, select the parent folder and click Next.

 4. Click on [Next] button
 5. Input file name
 6. Click [Next] button

 7. Select New HTML File (5) for the template and click Finish

 8. You see generated code:

9. Open it by default web Browser

Opening the Web Page in a Browser

Some browsers are changed by:

 1.   Select Window->Preferences from the menu bar.
2.   Expand General and click Web Browser.
3.   Click New.
4.   Type the name of the browser and specify its location using the Browse button

5.   Click OK.
6.   Click the Use external web browser button.
7.   Check the box next to the new browser (e.g., Google Chrome).
8.   Click OK.
9.   Open  link

                                  Reference