In the CSS 2.1 Recommendations it is clearly stated that an element with a z-index set on auto doesn't generate a stacking context. auto The stack level of the generated box in the current stacking

It is very easy to make an infinite scroll with jQuery. Suppose we have an unordered list to which we want to add new elements after the progress of the scrollbar. <ul id="infinite-list">

Suppose we have the need to send a notification to all the users who have left a comment or a rating on one of the posts of our ASP .NET blog. Obviously, each user should receive just one notification