Let's go back to a plain old screen.
<body> Something really cool </body>
We can make things bold.
<body> Something really <b>cool</b> </body>
What we are (more or less) telling the browser is: at the <b> start making things bold, and at the </b> stop making things bold. Or, maybe a little more accurately, we are suggesting to the browser that all text contained within the <b> element should be rendered bold.
The same principle applies to italics...
<body> Something <i>really</i> <b>cool</b> </body>
...and underlining.
<body> <u>Something</u> <i>really</i> <b>cool</b> </body>
Back again to a plain screen.
<body> Something really cool </body>
We can use tags in combination if we wish...
<body> Something really <i><b>cool</b></i> </body>
This is an example of nested tags. If you are going to use tag pairs in combination (which you will probably be doing quite a bit), then to avoid confusing the browser (not to mention confusing yourself) they should be nested, not overlapping. Let me illustrate...
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<-- Overlapping tags.... bad |
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<-- Nested tags.... good |
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| PageTutor - So, you want to make a Web Page! |
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