WordPress is one of the most widely used CMS platforms. It began as a blogging platform, and remains popular for blog-heavy websites.
Compared with other open-source systems, WordPress stands out for ease of use. However, even with its large selection of plug-ins, it’s not as customizable as the other systems, and it has a reputation for being prone to security holes. WordPress is best-suited for sites with relatively simple requirements, or where the users responsible for content-posting or site administration are not technically proficient.
WordPress uses “themes”, packages which contain CSS, PHP and other files to determine how the site appears to frontend users. Another option is to use one of many theme frameworks, some of which remove the need for manual coding.