我正在开发页面进度加载器,我想为整个进度设置宽度动画,但是我没有任何运气。请参阅下文,我们将不胜感激。
https://jsfiddle.net/nbx9dwzL/
HTML
<div id="page-progress-bar-top"></div>
Javascript
var pageProgressBarTop = document.getElementById("page-progress-bar-top")
pageProgressBarTop.classList.add("complete")
CSS
#page-progress-bar-top{
position:absolute;
height:4px;
background:#12ADFD;
z-index:100;
-webkit-transition: all 3s;
-moz-transition: all 3s;
-ms-transition: all 3s;
-o-transition: all 3s;
transition: all 3s;
-webkit-box-shadow: 0px 2px 7px 0px rgba(179,179,179,0.82);
-moz-box-shadow: 0px 2px 7px 0px rgba(179,179,179,0.82);
box-shadow: 0px 2px 7px 0px rgba(179,179,179,0.82);
}
#page-progress-bar-top.complete{
width:100%;
}
您没有initial width
,并且[width
元素的默认 <div>
为100%
(它是一个块元素)。
要查看过渡,您想应用width
,例如1px
开头:
document.addEventListener("click", function() {
var pageProgressBarTop = document.getElementById("page-progress-bar-top")
pageProgressBarTop.classList.add("complete")
});
#page-progress-bar-top {
width: 1px;
position: absolute;
height: 4px;
background: #12ADFD;
z-index: 100;
-webkit-transition: all 3s;
-moz-transition: all 3s;
-ms-transition: all 3s;
-o-transition: all 3s;
transition: all 3s;
-webkit-box-shadow: 0px 2px 7px 0px rgba(179, 179, 179, 0.82);
-moz-box-shadow: 0px 2px 7px 0px rgba(179, 179, 179, 0.82);
box-shadow: 0px 2px 7px 0px rgba(179, 179, 179, 0.82);
}
#page-progress-bar-top.complete {
width: 100%;
}
<div id="page-progress-bar-top"></div>
可以在here上看到它。