Did you ever spot those subtle grips at the corners of text fields in Safari, Chrome, Firefox, and nearly all other Web browsers on Mac? These resizable corners allow you to adjust the size of the text field - both vertically and, in some cases, horizontally. This feature is incredibly useful for instances where the web page design offers a cramped space for text input, yet you have more to type than it can visibly contain. Simply pull on these grips to expand the text entry area to your preference. As you do, other elements on the webpage shift accordingly to make room for the enlarged field. On the off chance that a text field lacks these resizing grips, it's typically a hint from the site's designer that the field is meant for brief, single-line entries.
(Featured image based on originals by iStock.com/OlgaCanals and PhotoMelon)