hide div tag on mobile view only?

You will need two things. The first is @media screen to activate the specific code at a certain screen size, used for responsive design. The second is the use of the visibility: hidden attribute. Once the browser/screen reaches 600pixels then #title_message will become hidden. EDIT: if you are using another CSS for mobile then just add the visibility: hidden; to #title_message. Hope this helps … Read more

Brackets – Live Preview not working

The Live Preview “Base URL” is the localhost URL that corresponds to the root folder of your project. Brackets uses this to map from a local path on disk to the server URL which serves up that same file: it takes the HTML file’s path relative to the project root, appends that relative path onto the Base … Read more

How to center HTML5 Videos?

The center class must have a width in order to make auto margin work: Then I would apply the center class to the video itself, not a container:

How to fade an image with CSS without opacity?

You can’t fade the opacity of an element, without having what’s behind showing through. The site you linked to isn’t fading the opacity of the image, but introducing a translucent layer over the top with the text in. If you just want to fade the image, but not have the background show through, you could … Read more

What does “*” mean in CSS?

This is a common technique called a CSS reset. Different browsers use different default margins, causing sites to look different by margins. The * means “all elements” (a universal selector), so we are setting all elements to have zero margins, and zero padding, thus making them look the same in all browsers.