Rapid prototyping is the process of quickly generating
mock-ups of what a website will look like.
Readability is the degree to which the meaning of text is
understandable, based on the complexity of sentences and the
difficulty of vocabulary. Indexes for readability usually
rank usability by the age or grade level required for someone
to be able to readily understand a reading passage.
Relative sizing is scalable. It is the opposite of
absolute sizing. For usability and accessibility it is better
to use relative rather than absolute sized units. Use
relative units such as percent or ems. Many low-vision users
make use of devices to enlarge content displayed on their
monitors. By using relative units, these users are able to
change the size of the text without much difficulty .For more
A replaced element is one that, when the page is
rendered, its contents are replaced by something else.
Examples of replaced elements include images, form inputs,
Responsive Web Design
Responsive Web Design is a technique for adapting a
website's layout across multiple devices. It is comprised
of three parts: media queries, fluid grids, and flexible
is a technology that notifies you when a web site is
updated, and allows you to read the updates without visiting
the site itself. For more information consult