The Web is not Print

When you design for print you get to choose the size, shape, weight and finish of the stock it will be printed on which means that you will know how your design will come out. Web is different...

• You cannot control the size of the screen or its resolution. You have lost control of the layout and how the fonts will come out
• You cannot assume the screen is correctly calibrated, you have lost control of the colours. Subtle colour differences are lost
• You cannot assume the fonts are available or being rendered in the size you want, how the system is configured is unknown to you

As a designer you no longer have the same degree of control on the web that you had in print.