[ditr_flag_translator _builder_version=”4.10.4″ _module_preset=”default” flag_width=”28″ flag_orientation=”vertical” flag_spacing=”0″ border_radii=”on|28px|28px|28px|28px” border_color_all=”#E02B20″ border_width_all=”3px” hover_enabled=”0″ sticky_enabled=”0″][/ditr_flag_translator][ditr_abbr_translator _builder_version=”4.10.4″ _module_preset=”default” hover_enabled=”0″ sticky_enabled=”0″][/ditr_abbr_translator]

WordPress users may install and switch among different themes. Themes allow users to change the look and functionality of a WordPress website without altering the core code or site content. Every WordPress website requires at least one theme to be present and every theme should be designed using WordPress standards with structured PHP, valid HTML (HyperText Markup Language), and Cascading Style Sheets (CSS). Themes may be directly installed using the WordPress “Appearance” administration tool in the dashboard, or theme folders may be copied directly into the themes directory, for example, via FTP.[14] The PHPHTML and CSS found in themes can be directly modified to alter theme behavior, or a theme can be a “child” theme that inherits settings from another theme and selectively overrides features.