Bootstrap4 Carousel轮播上下滚动、淡入淡出效果

作者: 站长 上传时间: 浏览: N/A 下载: N/A 格式: N/A 评分: N/A

Bootstrap4 Carousel轮播非常简单好用，默认左右滚动效果，但通常的需求是三种情况：左右滚动（水平滚动）、上下滚动（垂直滚动）、淡入淡出。

通过增加少量的CSS，就可以为Bootstrap4 Carousel轮播增加上下滚动（垂直滚动）、淡入淡出效果。

新增的CSS如下：

.carousel-fade .carousel-inner .carousel-item {
-webkit-transform: translateX(0);
transform: translateX(0);
transition-property: opacity;
}
.carousel-fade .carousel-inner .carousel-item,
.carousel-fade .carousel-inner .active.carousel-item-left,
.carousel-fade .carousel-inner .active.carousel-item-right {
opacity: 0;
}
.carousel-fade .carousel-inner .active,
.carousel-fade .carousel-inner .carousel-item-next.carousel-item-left,
.carousel-fade .carousel-inner .carousel-item-prev.carousel-item-right {
opacity: 1;
}

.carousel-vertical .carousel-inner .carousel-item-next.carousel-item-left,
.carousel-vertical .carousel-inner .carousel-item-prev.carousel-item-right {
-webkit-transform: translateY(0);
transform: translateY(0);
}
.carousel-vertical .carousel-inner .active.carousel-item-left,
.carousel-vertical .carousel-inner .carousel-item-prev {
-webkit-transform: translateY(-100{5cc1b29162d549a8071384de182cc9fc6e6a0fd85e7907f22fd9e18cff4269c3});
transform: translateY(-100{5cc1b29162d549a8071384de182cc9fc6e6a0fd85e7907f22fd9e18cff4269c3});
}
.carousel-vertical .carousel-inner .active.carousel-item-right,
.carousel-vertical .carousel-inner .carousel-item-next {
-webkit-transform: translateY(100{5cc1b29162d549a8071384de182cc9fc6e6a0fd85e7907f22fd9e18cff4269c3});
transform: translateY(100{5cc1b29162d549a8071384de182cc9fc6e6a0fd85e7907f22fd9e18cff4269c3});
}

Bootstrap Carousel轮播上下滚动HTML如下：

<div id="slides" class="carousel slide carousel-vertical" data-ride="carousel">
<ul class="carousel-indicators">
<li data-target="#slides" data-slide-to="0" class="active"></li>
<li data-target="#slides" data-slide-to="1"></li>
<li data-target="#slides" data-slide-to="2"></li>
<li data-target="#slides" data-slide-to="3"></li>
</ul>

<div class="carousel-inner">
<div class="carousel-item active">
<a href="#"><img src="" alt="幻灯片" /></a>
</div>
<div class="carousel-item">
<a href="#"><img src="" alt="幻灯片" /></a>
</div>
<div class="carousel-item">
<a href="#"><img src="" alt="幻灯片" /></a>
</div>
<div class="carousel-item">
<a href="#"><img src="" alt="幻灯片" /></a>
</div>
</div>

<a class="carousel-control-prev" href="#slides" data-slide="prev">
<span class="carousel-control-prev-icon"></span>
</a>
<a class="carousel-control-next" href="#slides" data-slide="next">
<span class="carousel-control-next-icon"></span>
</a>
</div>

淡入淡出的HTML与上下滚动的基本相同，只需将Class carousel-vertical换为carousel-fade即可。而水平滚动只需要删除Class carousel-vertical即可。