Final answer:
When creating web graphics, users can view a pixel grid by using graphic editing software or utilizing digital cameras with a rule of thirds grid overlay setting.
Step-by-step explanation:
When creating web graphics, there are various settings and commands that allow users to view a pixel grid. One option is to use graphic editing software, such as Adobe Photoshop or Pixlr Editor, which typically have a feature to display a grid overlay. Another option is to use digital cameras that have a setting to overlay a rule of thirds grid on the screen. This can be helpful for practicing rule of thirds composition.