【发布时间】:2019-03-23 09:33:35
【问题描述】:
Wordpress 网站,使用 Jquery 和 CSS 为内容 div 创建预加载器,我在这里找到了一个简单而伟大的网站:https://www.w3schools.com/howto/tryit.asp?filename=tryhow_css_loader5
<script type="text/javascript">
jQuery(document).ready(function( $ ) {
//A page can't be manipulated safely until the document is "ready."
var myVar;
function myFunction() {
myVar = setTimeout(showPage, 3000);
}
function showPage() {
document.getElementById("loader").style.display = "none";
document.getElementById("content").style.display = "block";
}
});
</script>
<style type="text/css">
#loader {
position: absolute;
left: 50%;
top: 50%;
z-index: 1;
width: 150px;
height: 150px;
margin: -75px 0 0 -75px;
border: 16px solid #f3f3f3;
border-radius: 50%;
border-top: 16px solid #3498db;
width: 120px;
height: 120px;
-webkit-animation: spin 2s linear infinite;
animation: spin 2s linear infinite;
}
@-webkit-keyframes spin {
0% { -webkit-transform: rotate(0deg); }
100% { -webkit-transform: rotate(360deg); }
}
@keyframes spin {
0% { transform: rotate(0deg); }
100% { transform: rotate(360deg); }
}
/* Add animation to "page content" */
.animate-bottom {
position: relative;
-webkit-animation-name: animatebottom;
-webkit-animation-duration: 1s;
animation-name: animatebottom;
animation-duration: 1s
}
@-webkit-keyframes animatebottom {
from { bottom:-100px; opacity:0 }
to { bottom:0px; opacity:1 }
}
@keyframes animatebottom {
from{ bottom:-100px; opacity:0 }
to{ bottom:0; opacity:1 }
}
#content {
display: none;
}
</style>
<body onload="myFunction()" style="margin:0;">
<div id="loader"></div>
<div id="content" class="site-content container clear">
Preload this text.
</div>
错误是:
myFunction is not defined at onload ((index):420)
是否有针对 WordPress 的解决方法或其他简单的方法来为特定的 div id 添加预加载器?
【问题讨论】: