我的以下代码无法使微调器始终显示在屏幕中央。有人可以帮帮我吗?
var div = document.createElement("div");
div.id="create";
div.style.top="50%";
div.style.left="30%";
div.style.width = "100px";
div.style.height = "100px";
div.style.background = "white";
div.style.color = "blue";
div.innerHTML = "please wait while your request is processed.";
div.style.zIndex="5";
div.position="fixed";
div.style.margintop="-9em";
div.style.marginleft="-15em";
document.getElementById('center').appendChild(div);
ams.showSpinner( {
element: $('create'),
opacity: 0.3,
duration: 0.3
} );
答案 0 :(得分:1)
我推荐这种方法:
JS:
$("<div/>", {
id: 'create',
text: 'Please wait while your request is processed.'
}).appendTo('#center');
ams.showSpinner({
element: $('create'),
opacity: 0.3,
duration: 0.3
});
CSS:
#create{
background: white;
color: blue;
position:absolute;
top: 50%;
left: 50%;
height: 100px;
width: 100px;
z-index: 5;
margin: -50px 0 0 -50px;
}
#create
从顶部开始为50%
,从left
开始为50%,但负边距值为自身宽度/高度的一半,因此位于中心位置。
我只添加了额外的jQuery代码以使其更具可读性,可以使用它来代替:
var div = document.createElement("div");
div.id = "create";
div.innerHTML = "please wait while your request is processed.";
document.getElementById('center').appendChild(div);
ams.showSpinner({
element: $('create'),
opacity: 0.3,
duration: 0.3
});