So you can tweak the positional difference between the placeholder text and value simply by tweaking the padding or line-height using that pseudo-element selector: input[type=text] { padding:4px; } input[type=text]::-webkit-input-placeholder { padding-top:5px; } Or whatever.
Identifying and describing action-reaction force pairs is a simple matter of identifying the two interacting objects and making two statements describing who is pushing on whom and in what direction. For example, consider the interaction between a baseball bat and a baseball.
FASTBALL REACTION TIME. Click on the play ball button, then move your cursor over the part of the screen that shows the baseball field. As soon as you see swing batter, click on your screen as fast as you can.Fastball Reaction Time imitates a 90-mph fastball thrown by a major league pitcher.hile this exhibit doesn't test if you could actually hit a fastball, it does test whether you could react in time to hit one. When you see the swing batter screen, a signal in your eye sends a message to a part of your brain that controls your muscles.