web page layout

well.. there are questions similar to this开发者_运维百科 topic but i wasnt able to find one that could answer my query.

my questions:

1. if u open a web page and press Ctrl+A the whole page gets selected and is in blue. What information can be extracted from this selection about the layout of the page?

2. Any automatic testing tool that i can use to test the website layout? Just give the website URL and it parses automatically all the pages and reports potential mistakes/errors in the CSS/HTML? i think Selienium has such functionality but I am looking for something much simpler.

if you are looking for consistency across different browsers, you can check browsershots. It gives you a snapshot of your site layout across all famous browsers on all Operating systems.

1-All major browsers would allow you to copy the general visible text, But FireFox can only copy the IMG alt [img alt="this value"]

2-As @βӔḺṪẶⱫŌŔ mentioned validator.w3.org is the ultimate place for validating HTML.

1. When you paste the content of the selection, (ctrl + A) on an editor, you will find that all the text content which is on the page will be pasted. Any images or other elements other than text will not be pasted. So that would not give you much information regarding the layout.

2. Selenium is widely regarded as beginner friendly. You can also look at a few others like Sahi.Find a similar post here