Save the file immediately. All folders and file names are in lower case . If the files have spaces or certain characters in the name some browsers will not read the file. All images must have Alternate Text entered. Click on the image and in the Properties box enter the alternate text for the image in the the Alt box .
All words linked within the body of the page are to be meaningful words.
All images are to have meaningful file names. All headings to have capitals. No capitals to be used in the body of text. The coloured menu bar at the bottom of the page is available for additional links if required. Select those appropriate for your page.