Components and tips

Check this situation – you want to import to existing table already prepared data in csv in eg. PhpMyAdmin, and then you can see MySQL error: #1062 – Duplicate entry […]

Tables in HTML are a quite strange elements. You can set some CSS rules, linke width for columns, and somethimes – nothing happens. This happens especially when in table cell […]

Input type file is always a coders nightmare. You can’t style it using common methods coming from CSS, because there are no options to style it using CSS input type […]

When we code CSS for website or web app, quite often we need to provide custom look of bullets in UL list. Standard CSS rules give us not so many […]

Sometimes you are not able to use JavaScript but you want to show and hide some div. It is possible, and very easy! You must create 3 elements: input – […]

As front-end developers we can’t stay only in HTML/CSS/JS area. We need to do from time to time operation in other IT areas like in back-end, server side or in […]

It is a common situation, that you want to put some element (like text, image or div) in the center (horizontally and vertically) of parent div (container). Setting some element […]

In all browsers click F12 on keybord, and open developers tools. Then click like on images below to show cookies and session and local storage. Check cookies in Internet Explorer […]

As everyone knows, it is impossible to style input checkbox in CSS. But there is very easy workaround for that, of course, without JavaScript. You must create input checkbox with […]

If we want to create, update or remove cookies in JavaScript we must do a few very simple operations like I described below. Step 1 – prepare an expiration date […]