41. How are active links different from normal links?
The default color for normal and active links is blue. Some browsers recognize an active link when the mouse cursor is placed over that link; others recognize active links when the link has the focus. Those that don’t have a mouse cursor over that link is considered a normal link.
42. Do style sheets limit the number of new style definitions that can be included within the brackets?
Style sheets do not limit the number of style definitions that can be included within the brackets for a given selector. Every new style definition, however, must be separated from the others by a semicolon symbol.
43. Can I specify fractional weight values such as 670 or 973 for font weight?
Implementation largely depends on the browser, but the standard does not support fractional weight values. Acceptable values must end with two zeroes.
44. What is the hierarchy that is being followed when it comes to style sheets?
If a single selector includes three different style definitions, the definition that is closest to the actual tag takes precedence. Inline style takes priority over embedded style sheets, which takes priority over external style sheets.
45. Can several selectors with class names be grouped together?
You can define several selectors with the same style definition by separating them with commas. This same technique also works for selectors with class names.
46. What happens if you open the external CSS file in a browser?
When you try to open the external CSS file in a browser, the browser cannot open the file, because the file has a different extension. The only way to use an external CSS file is to reference it using <link/> tag within another HTML document.
47. How do you make a picture into a background image of a web page?
To do this, place a tag code after the </head> tag as follows:
<body background = “image.gif”>
Replace image.gif with the name of your image file. This will take the picture and make it the background image of your web page.
48.What happens if the list-style-type property is used on a non-list element like a paragraph?
If the list-style-type property is used on a non-list element like a paragraph, the property will be ignored and do not affect the paragraph.
49. When is it appropriate to use frames?
Frames can make navigating a site much easier. If the main links to the site are located in a frame that appears at the top or along the edge of the browser, the content for those links can be displayed in the remainder of the browser window.
50. What happens if the number of values in the rows or cols attribute doesn’t add up to 100 percent?
The browser sizes the frames relative to the total sum of the values. If the cols attribute is set to 100%, 200% the browser displays two vertical frames with the second being twice as big as the first.