You save on production costs. Web standards provide a strict separation of content and layout. Before the formatting language CSS (one of the important Web standards) was widely used, the formatting instructions had to be incorporated into the HTML structure. It looked for a simple, graphically formatted header like so: welcome welcome! This is madness! You can’t see the forest for the trees. And all this only to “welcome welcome!” to display as a formatted title! That would have been maybe still to cope with. “But it was still a different, essential larger problem: this spaghetti code” had to be repeated on each page (possibly several times).
Because there were several headings, interlaced of course and and and. You must be an expert to detect that such a gibberish is difficult to maintain and lead to inevitably do more cost, as the modern version of CSS: welcome welcome! The formatting instructions in a separate file will be stored here: h1 color: gray; width: 740px; font-weight: bold; font-size: 2em and now comes the real kicker: These formatting instructions each of your Web pages accessed automatically. “With the command: this small statement says: the layout.css file use for layout on this page.” Now you know too, what with the important separation of content (HTML and text) and layout (sizes, colors, graphics, fonts,…) has to be. No matter whether you 10, 100 or 1,000,000 pages have: with a single statement of formatting your Web Designer can change all h1 headlines in one fell swoop. Just put in the CSS statement the color to red (h1 color: red). Get ready! With the old method would take first a week vacation as a customer. With any luck, your Web designer would be ready when you return with the color change. “If you then say: I don’t know, somehow I found the old color better.”… get to cover! Or take a strong sedative to be careful, if later, the giant Bill for this presented the minor color changes will.