Using or tag twice?

Yes, but with a catch. The W3 documents state that the tags represent the header and footer areas of their nearest ancestor section. I would recommend having as many as your want, but only 1 of each for each “section” of your page, i.e. body, section etc. From W3 A header element is intended to … Read more

How to position a DIV at specific coordinates?

Script its left and top properties as the number of pixels from the left edge and top edge respectively. It must have position: absolute; var d = document.getElementById(‘yourDivId’); d.style.position = “absolute”; d.style.left = x_pos+’px’; d.style.top = y_pos+’px’; Or do it as a function so you can attach it to an event like onmousedown function placeDiv(x_pos, … Read more

Make absolute child full length inside a scrollable container

You need to wrap the text in a div element and include the absolutely positioned element inside of it. <div class=”container”> <div class=”inner”> <div class=”full-height”></div> [Your text here] </div> </div> Css: .inner: { position: relative; height: auto; } .full-height: { height: 100%; } Setting the inner div’s position to relative makes the absolutely position elements … Read more

How to set a value to a file input in HTML to a client side disk file system path?

You cannot set it to a client side disk file system path, due to security reasons. Imagine: <form name=”foo” method=”post” enctype=”multipart/form-data”> <input type=”file” value=”c:/passwords.txt”> </form> <script>document.foo.submit();</script> You don’t want the websites you visit to be able to do this, do you? =) You can only set it to a publicly accessible web resource as seen … Read more

What is the srcset attribute in an IMG tag and how to use it?

In short, Srcset is a new attribute which allows you to specify different kind of images for different screen-sizes/orientation/display-types. The usage is really simple, you just provide a lot of different images separating them with a comma like this: <img src=”https://stackoverflow.com/questions/19634463/image.jpg” alt=”image” srcset=”https://stackoverflow.com/<img> <descriptor>, https://stackoverflow.com/…, https://stackoverflow.com/<img_n> <descriptor_n>”>. Here is an example: srcset=”https://stackoverflow.com/image.jpg 160w, https://stackoverflow.com/image2.jpg 320w, … Read more