我的目标是使用angular js
动态修改css类值我的HTML
<body class="loader progress-bar">
</body>
Css课程:
body {
margin: 0 auto;
font-family: 'Source Sans Pro', sans-serif;
color: #4a4a4a;
letter-spacing: 1px;
background: url('#{$imgPath}vsn-bg.png') #f5f5f5 no-repeat 50% 0;
@media only screen and (max-width: 1024px) { background-position-y: -20px; }
&.loader {
> div {
width: 40px;
height: 36px;
background: url('#{$imgPath}/v-360-contact-color@2x.png') center 100%;
position: absolute;
top: 50%;
left: 50%;
margin: -20px 0 0 -18px;
z-index: 9999999;
}
#{$project}_cc {
display: none;
}
}
&.progress-bar {
&::before {
content: '';
display: block;
width: 20%;
height: 4px;
background: rgba(245, 245, 245, 0.9);
transition: width ease .3s;
}
}
}
目标是修改进度条 宽度的值,例如动态从20%修改为30%