In HTML, you can select an item using various methods depending on the context. To select an element using CSS, you would typically use selectors like class names, IDs, or element types. For example, to select an element with a specific class, you would use “.classname”. In JavaScript, you can select elements using methods like getElementById, getElementsByClassName, or querySelector. These methods allow you to select elements based on their ID, class, or other attributes. Overall, the selection process depends on the specific requirements of your project and the tools you are using.