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Diferencias relacionadas

Diferencias relacionadas

HTML vs XML	HTML vs XHTML	HTML vs DHTML

HTML 5 vs HTML 4

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Pregunta 16. Do I have to memorize a bunch of tags?

No. Most programs that help you write HTML code already know most tags, and create them when you press a button. But you should understand what a tag is, and how it works. That way you can correct errors in your page more easily.

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Pregunta 17. How do I make a form so it can be submitted by hitting ENTER?

The short answer is that the form should just have one <INPUT TYPE=TEXT> and no TEXTAREA, though it can have other form elements like checkboxes and radio buttons.

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Pregunta 18. How do I set the focus to the first form field?

You cannot do this with HTML. However, you can include a script after the form that sets the focus to the appropriate field, like this:

<form id="myform" name="myform" action=...>
<input type="text" id="myinput" name="myinput" ...>
</form>

<script type="text/javascript">
document.myform.myinput.focus();
</script>

A similar approach uses <body onload=...> to set the focus, but some browsers seem to process the ONLOAD event before the entire document (i.e., the part with the form) has been loaded.

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Pregunta 19. How can I eliminate the extra space after a </form> tag?

HTML has no mechanism to control this. However, with CSS, you can set the margin-bottom of the form to 0. For example:
<form style="margin-bottom:0;" action=...>

You can also use a CSS style sheet to affect all the forms on a page:
form { margin-bottom: 0 ; }

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Pregunta 20. Can I have two or more actions in the same form?

No.

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