Strange symbol shows up on website (L SEP)?

That character is U+2028 or HTML entity code 
 which is a kind of newline character. It’s not actually supposed to be displayed. I’m guessing that either your server side scripts failed to translate it into a new line or you are using a font that displays it. But, since we know the HTML and UNICODE vales for the … Read more

Rotate an image in image source in html

If your rotation angles are fairly uniform, you can use CSS: CSS: Otherwise, you can do this by setting a data attribute in your HTML, then using Javascript to add the necessary styling: Sample jQuery: Demo: http://jsfiddle.net/verashn/6rRnd/5/

What is “X-Content-Type-Options=nosniff”?

It prevents the browser from doing MIME-type sniffing. Most browsers are now respecting this header, including Chrome/Chromium, Edge, IE >= 8.0, Firefox >= 50 and Opera >= 13. See : Sending the new X-Content-Type-Options response header with the value nosniff will prevent Internet Explorer from MIME-sniffing a response away from the declared content-type. EDIT: Oh … Read more

What is “X-Content-Type-Options=nosniff”?

It prevents the browser from doing MIME-type sniffing. Most browsers are now respecting this header, including Chrome/Chromium, Edge, IE >= 8.0, Firefox >= 50 and Opera >= 13. See : Sending the new X-Content-Type-Options response header with the value nosniff will prevent Internet Explorer from MIME-sniffing a response away from the declared content-type. EDIT: Oh … Read more

html tables: thead vs th

The <thead> tag is used to group the header content in an HTML table. The thead element should be used in conjunction with the tbody and tfoot elements. More : thead You use <thead> to encapsulate an entire row (or rows) to designate them as the Table Header. According to the spec, “This division enables user agents to support scrolling of table bodies independently of the … Read more