Adding images in page

HTML contains elements for adding images to your website.
The formats most used for the images added in a HTML page are GIF and JPEG (JPG ; JPE), the advantage of GIF images is that are small in size (in bytes), having a maximum of 256 colors.
Other format types that can be used are: PNG, BMP, TIFF, PCX

Adding image in HTML page

To add an image in a HTML document you can use the <img> tag and the following attributes:

src - Contains the location (URL address) of the file with the image.
alt - At this attribute you write the text that will appear if the image cannot be displayed.
width - The width of the image in pixels, if it's not specified the image will maintain it's original width.
height - The image's heigth, in pixels. If it's not specified the image will be presented in it's orininal heigth.

In the following example you can see how you can include an image in your web page and how to use these attributes:

<h4>Example adding image</h4>

<img src='../imgs/smile_gift.png' alt='smile' width='150' height='132'>

- In the <img> tag you can add the style attribute with CSS properties to set the border, position and margins for image.
Example::

<h4>Example image and style</h4>

<img src='../imgs/smile_gift.png' alt='smile' width='150' height='132' style='border:2px solid #0000ee; margin:5px 25px;'>

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Daily Test with Code Example

HTML

CSS

JavaScript

PHP-MySQL

Which meta tag provides a short description of the page?

<meta name="description" content="70-160 characters that describes the content of the page" />

Which CSS property is used to stop the wrapping effect of the "float"?

clear text-align position

#some_id {
  clear: both;
}

Click on the method which gets an array with all the elements in the document that have a specified tag name.

getElementsByName() getElementById() getElementsByTagName()

var divs = document.getElementsByTagName("div");
var nr_divs = divs.length;
alert(nr_divs);

Indicate the PHP function which returns the number of elements in array.

is_[) count() strlen()

$arr =[7, 8, "abc", 10);
$nri = count($arr);
echo $nri;        // 4

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