oLogin.style.marginTop = "-" + oLogin.clientHeight / 2 + "px";
oLogin.style.marginLeft = "-" + oLogin.clientWidth / 2 + "px";
};var oClose = document.getElementById("close");oClose.onclick = function () {oMask.style.display = "none";}}; </script>
</body>
oLogin.style.marginLeft = "-" + oLogin.clientWidth / 2 + "px";
};var oClose = document.getElementById("close");oClose.onclick = function () {oMask.style.display = "none";}}; </script>
</body>
2016-08-28
oBtn.onclick = function () {
oMask.style.display = "block";
oMask.style.height =document.documentElement.scrollHeight+"px";
//使登錄框處于瀏覽器的中間
oMask.style.display = "block";
oMask.style.height =document.documentElement.scrollHeight+"px";
//使登錄框處于瀏覽器的中間
2016-08-28
<script>
window.onload = function () {
var oBtn = document.getElementById("btnLogin");
var oMask = document.getElementById("mask");
var oLogin = document.getElementById("login");
window.onload = function () {
var oBtn = document.getElementById("btnLogin");
var oMask = document.getElementById("mask");
var oLogin = document.getElementById("login");
2016-08-28
也可以用display實(shí)現(xiàn)。css加上 #mask{display:none}
<div id="login-area"><button id="btnLogin" >登錄</button></div>
<div id="mask">
<div id="login">
<div class="loginCon" id="loginCon"></div>
<div id="close"></div>
</div>
</div>
<div id="login-area"><button id="btnLogin" >登錄</button></div>
<div id="mask">
<div id="login">
<div class="loginCon" id="loginCon"></div>
<div id="close"></div>
</div>
</div>
2016-08-28