.div1
{
border:0px; width:570px; height:36px;text-align:center;margin:1px;z-index:0;
}
.div1
{
border:0px; width:570px; height:36px;text-align:center;margin:1px;z-index:99;
}
<div style="float:left" class="div1">
<input name="sGsName" type="text" class="homesear_inputbox" id="sGsName" autocomplete="off" onkeyup="showGs(event)" />
<input class="homesear_input" type="submit" name="Submit" value="" onclick="tj()"/>
</div>
<div style="float:left" class="div2">
<div id="ts"></div>
</div>
