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
tag you can add the style
attribute with CSS properties to set the border, position and margins for image.
<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;'>
Daily Test with Code Example
Which HTML5 tag defines marked text? (can be used to highlight parts of text) <mark> <embed> <span>
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Which CSS pseudo-class adds a style to an element when the mouse is over it? :focus :hover :active
Click on the function which returns a string value that represents the number rounded to the x digits after the decimal point. toPrecision(x) toFixed(x) floor(x)
var num = 12.34567;
num = num.toFixed(2);
alert(num); // 12.35
Indicate the PHP function which reads an entire file into an array. [) file() readfile()
$arr = file("a_file.txt", FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);