What does the Optgroup element do?
The HTML element creates a grouping of options within a element.
How do you use HTML output?
HTML tag is used to display the result of some calculation (performed by JavaScript) or the outcome of a user action (such as Input data into a form element). The tag is a newly added tag and was introduced in HTML5….Syntax.
| Display | Inline |
|---|---|
| Start tag/End tag | Both Start and End tag |
| Usage | Forms and Input |
Can options logically be grouped together?
To group options together, use the optgroup element, with the related option elements inside that element. Label the group with the “label” attribute so users will know what to expect inside the group.
How do I view HTML output in Chrome?
Fire up Chrome and jump to the webpage you want to view the HTML source code. Right-click the page and click on “View Page Source,” or press Ctrl + U, to see the page’s source in a new tab. A new tab opens along with all the HTML for the webpage, completely expanded and unformatted.
What are HTML labels?
HTML label acts as a caption for a specified element. It is very convenient to use HTML label for elements. It increases the clickable area, as clicking the label activates the input as well. An input element can also be nested inside the HTML label tag.
How do I put text in a text box in HTML?
To sum up, to create a text input field in HTML, you need at least:
- An element, which typically goes inside a element.
- To set the type attribute to have a value of text . This will create a single line text input field.
- Don’t forget to add a name attribute.
How do I style optgroup and options with CSS?
Last week’s HTML/CSS post looked at using optgroup to group options in an HTML select box and this time I’ll look at how to style optgroup and options with CSS. This post concentrates on Firefox. By default, Internet Explorer and Mozilla Firefox style the headings are bold and italic. The s in an are indented.
What does the optgroup only option setting do?
Setting it for optgroup only will set it for the optgroup heading as well as the options belonging to that optgroup Setting it for option only will only apply it to the options. So with Firefox if you wanted to make the optgroup headings e.g. red but leave the options as black you would need to do this:
How to change the font size of the optgroup label?
optgroup { font-family: serif; } styles the optgroup label and options within it. option { font-family: serif; } has no effect. select { font-size: 20px; } changes the font size for the whole select box. optgroup { font-size: 20px; } changes the font size for the optgroup label and options within it.
Should optgroup labels have a black background?
The optgroup label will still have a black background, but the options will be the specified background-color As noted above the table, it’s probably better to leave styling of select boxes, optgroup and options alone and just leave them as the defaults because cross browser styling is so inconsistent it’s not worth the bother.
