<!--引入jq-->
<script>
var isShowTip = window.sessionStorage.getItem("isShow") ? window.sessionStorage.getItem('isShow') : false;
if(!isShowTip) {
window.sessionStorage.setItem("isShow", true);
} else {
document.getElementById("isshow").style.display = 'none';
}
$("#tipBtn").bind("click", function() {
$(".tip-shadow").hide();
})
</script>
<section class="tip-shadow" id="isshow">
<div class="tip-box">
<p style="margin-top: 10px; margin-bottom:15px;"></p>
<span class="tipBtn" id="tipBtn">我知道了</span>
</div>
</section>