Pre-designed website layouts coded in HTML and styled with CSS. Pre-made templates for cost-effective online presence
Bootstrap grid uses containers, rows, and columns for responsive layout. System supports six responsive breakpoints based on min-width media queries. Containers center and horizontally pad content. Rows wrap columns with negative margins for left alignment
Navbars require .navbar and .navbar-expand classes for responsive behavior. Navbars are fluid by default, container can limit horizontal width. Accessibility requires role="navigation" and aria-current attributes
Images can be resized using height and width attributes on img tag. Browser automatically scales images when dimensions don't match. Aspect ratio can be preserved by setting only width and height to auto
HTML5 templates are pre-built web page setups for free use. HTML5 is the newest version of HTML for multimedia and faster websites. Templates include basic design elements and easy customization options
Setting min-height to 100% on both HTML and body elements creates unexpected behavior. Body element has zero height despite having default 8px margin. Background-color settings can make body appear taller than viewport