样式如图：

代码如下：

<div class=”fix-order”><style>

.order-bg {
position: absolute;
width: 100%;
height: 100%;
left: 0;
top: 0;
z-index: 1;
background:#538BC9;
opacity: .8;
filter: alpha(opacity=80);
}
.order-box {
position: relative;
width: 1003px;
margin: 0 auto;
padding-top: 18px;
z-index: 2;
}
.order-box td {
font: 14px/32px “微软雅黑”;
color: #3c2417;
}
.order-box .sub {
width: 103px;
height: 35px;
text-align: center;
background: #3c2417;
color: #fff;
font-size: 14px;
line-height: 30px;
border: none;
cursor: pointer;
}
.order-box .txt {
width: 157px;
height: 18px;
padding: 7px 9px;
font: 14px/18px “微软雅黑”;
color: #666;
background: #fff;
border: none;
}
.order-box select {
background: #fff;
width: 174px;
height: 32px;
font: 14px/18px “微软雅黑”;
color: #666;
border: none;
}
.order-box span {
display: inline-block;
width: 76px;
height: 35px;
background: #3c2417;
color: #fff;
text-align: center;
font-size: 14px;
line-height: 30px;
margin-right: 12px;
padding-top:3px;
}
</style>
<div class=”order-bg”></div>
<div class=”order-box”><form action=”http://xxx.com/form.php” method=”post” name=”form1″ onsubmit=”return myCheck()”>
<table width=”1003″ cellpadding=”0″ cellspacing=”0″ border=”0″>
<tbody><tr>
<td width=”90″><span>预约看房</span> </td>
<td width=”184″>姓名：<input type=”text” pattern=”^[a-zA-Z0-9\u4e00-\u9fa5]{2,12}$” placeholder=”您的姓名” id=”u” name=”u” required=”required”/></td>
<td width=”184″>电话：<input type=”text” name=”c” placeholder=”手机或固话” id=”c”/></td>
<td width=”184″>看房日期：<input type=”text” placeholder=”日期格式：2014.06.10″ name=”gohousedate” id=”gohousedate” /></td>
<td width=”107″><input type=”submit” value=”立即报名” class=”sub” name=”” id=””></td>
</tr>
</tbody></table></form>
</div>

<!–在加一段检测表单为空的JS–>
<script type=”text/javascript”>

function myCheck()
{
for(var i=0;i<document.form1.elements.length-1;i++)
{
if(document.form1.elements[i].value==””)
{
alert(“请完整填写”);
document.form1.elements[i].focus();
return false;
}
}
return true;

}
</script>