To store objects in HTML5 localStorage or sessionStorage, you need to first convert the object to a string using JSON.stringify() and then store it as a string. When you want to retrieve the object, you can use JSON.parse() to convert the string back to an object.

You can use the ::placeholder pseudo-element in CSS to target the placeholder text of an HTML5 input and change its color.

we have different types of options are available to horizontally center an element in CSS, depending on the situation. We will look at those details one by one.

You can set the cellpadding and cell spacing properties for a table in CSS using the border-collapse property and the border-spacing property, respectively.