搜索框的样式调整

app/html/search-home.html

				</div>
	        	<em class="mui-icon mui-icon-arrowdown"></em>
		    </div>
		    <input type="text" class="mui-input-clear mui-pull-right searchtxt2" placeholder="输入专家姓名、研究方向等关键字" id="searchval">
		    <input type="text" class="mui-input-clear mui-pull-left searchtxt2" placeholder="输入专家姓名、研究方向等关键字" id="searchval">
        </div>
	</header>