An iframe is used to display a web page within a web page.
Sytax for adding an Iframe:
<iframe src=”url”></iframe>
Url using for display website or webpage in Iframe.
Iframe attributes:
Height and Width attribute:
Set height and Width of the iframe.
Example:
<iframe src=”google.com” height=”200” width=”400”></iframe>
Border attribute:
<iframe src=”google.com” frameborder=”0”></iframe>
Target attribute:
The target attribute of a link must refer to the name attribute of the iframe.
<iframe src=”demo.html” name=”iframe_a”></iframe>
<a href=”http://google.com” target =”iframe_a”>google.com</a>
Tuesday, May 13, 2014
HTML Forms
Forms are used to collect data input by a user. They can be used as an interface for a web application for example or to send data across the web.
An HTML form can contain input elements like text fields, checkboxes, radio-buttons, submit buttons and more. A form can also contain select lists, textarea, fieldset, legend, and label elements.
The <form> tag is used to create an HTML form:
<form>
Input elements
</form>
Input elements:
Text fields:
<form>
<input type=”text” name=”firstname” /> : First Name <br />
<input type=”” name==”lastname” />: Last Name
Note: the form itself is not visible. Also note that the default width of a text field is 20 characters.
Password field:
<form>
<input type=”password” name=”pwd” />: Password
Note: the characters in a password field are masked(shown as asterisks or circles).
Radio Buttons
<input type="radio"> defines a radio button. Radio buttons let a user select ONLY ONE of a limited number of choices:
<form>
<input type="radio" name="sex" value="male">Male<br>
<input type="radio" name="sex" value="female">Female
</form>
How the HTML code above looks in a browser:
Checkboxes
<input type="checkbox"> defines a checkbox. Checkboxes let a user select ZERO or MORE options of a limited number of choices.
<form>
<input type="checkbox" name="vehicle" value="Bike">I have a bike<br>
<input type="checkbox" name="vehicle" value="Car">I have a car
</form>
How the HTML code above looks in a browser:
Submit Button
<input type="submit"> defines a submit button.
A submit button is used to send form data to a server. The data is sent to the page specified in the form's action attribute. The file defined in the action attribute usually does something with the received input:
<form name="input" action="html_form_action.asp" method="get">
Username: <input type="text" name="user">
<input type="submit" value="Submit">
</form>
How the HTML code above looks in a browser:
If you type some characters in the text field above, and click the "Submit" button, the browser will send your input to a page called "html_form_action.asp". The page will show you the received input.















