HTML Checklist: Check Your HTML

Vadim Nareyko — 1166076000

Structure and Visualization

* Do not use <font> element

* Move arrangement attributes (align, valign, width, height) to CSS.

* Do not use tables except showing table data. Using tables for visual formatting is acceptable in complex situations only. Max table nesting can not be great than 3.

* Move attribute "background" to CSS.

* Design of input fields and buttons must be written as class in CSS.

* Style table must be written as external file and linked using <link>

* All images related to design (not content) move to block with style {background: transparent url("gif") no-repeat;}

HTML code

* If table cell contains only image with width and height, then don't use these attributes for cell.

* Use minimum cols and rows for tables.

* All <image> elements must have "width" and "height" attributes.

* All <image> elements, which are not links, don't have "border" attribute.

* All attributes values must be placed in double quotes.

* All tags and attributes names must be in low case.

CSS code

* Unique elements must have "id" attribute, which is used for style. Repeated elements must use classes.

* Determine Links style through styles of (td {}, td a {}, td a:hover {}). a:hover must redefine only changed atttributes.

* Determine background color for <body>

* Split declarations to groups (fonts, tables, text blocks, divs)

* Determine geometrical dimensions in percents or pixels.

* All colors values must be as short as possible and in high case (#FFF instead of #ffffff).

* All tags and attributes names must be in low case.

* All margins and indents must be defined for all browsers.

* All classes and identifiers must be named logically with one naming convention.

Structure

* Use title, description and keywords in header.

* All elements with closing tags must have it (ideally, use XHTML 1.0 Transitional/Strict).

* Use alt attribute for <image>. If image don't have semantic meaning, alt must be empty.

* Use comments before main blocks.

* Use standard tags for creating text structure (<h1>-<h4>, <p>, <ul>, <il>, <li> and so one).

* Vertical and Horizontal menus must be defined using <li>.

* Don't use <b> and <i>. Use <strong> and <em>.

* Blocks must be placed in document in the descending order of importance. Blocks location can be defined using CSS.

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HTML Checklist: Check Your HTML