<style>
		#myblock {
			width: 300px;
			height: 300px;
			border: 1px solid gray;
		}
		#myblock #myfig {
			width: 100%;
		}
	</style>

<p id="myh">一直出剪刀</p>

<div id="myblock">
	<img id="myfig" src="" />
</div>

<button>出剪刀</button>
<button>出石頭</button>
<button>出布</button>