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.
1 Conclusion The ground reaction forces, as measured by a force platform, reflect the net vertical and shear forces acting on the surface of platform. 2  As such, they are an algebraic summation of the mass â acceleration products of all body segments while the foot is in contact with the platform.