我应该使用什么功能来让这些按钮工作

Question

<p>Press the buttons to change the box!</p>

<div id="box" style="height:150px; width:150px; background-color:orange; margin:25px"></div>

$ <button id="button1">Grow</button> 

$ <button id="button2">Blue</button> 

$ <button id="button3">Fade</button> 

$ <button id="button4">Reset</button>