javascript - 仅在悬停时显示 Bootstrap Carousel 导航

Question

我使用的是 Bootstrap 的 Carousel，在这里找到。这是一个很棒的脚本，不幸的是，我希望它能够让导航箭头消失并且只出现在悬停时。这可能吗？我将如何实施？

感谢大家的帮助！

Answer 1

你只需要一点 CSS

.carousel .carousel-control { visibility: hidden; }
.carousel:hover .carousel-control { visibility: visible; }

演示（jsfiddle）

Answer 2

摆脱那些讨厌的渐变也很好，添加它也可以：

.carousel-control.left, .carousel-control.right {
  background: none !important;
  filter: progid: none !important;
  outline: 0;
}
.carousel .carousel-control {
  visibility: hidden;
}
.carousel:hover .carousel-control {
  visibility: visible;
}

Answer 3

这是与 Bootstrap 5 一起使用的@Sherbrow 回答的后续内容。它还包括淡入和箭头动画。

.carousel .carousel-control-prev,
.carousel .carousel-control-next
{
    visibility: hidden;
    opacity: 1;
}

.carousel:hover .carousel-control-prev,
.carousel:hover .carousel-control-next
{
    visibility: visible;
    animation-duration: 1s;
    transition-timing-function: linear;
}

.carousel:hover .carousel-control-prev
{
    animation-name: FadeInPrev;
}

.carousel:hover .carousel-control-next
{
    animation-name: FadeInNext;
}

@keyframes FadeInPrev
{
    0%
    {
        opacity: 0;
        padding-left: 40px;
    }
    100%
    {
        opacity: 1;
        padding-left: 0px;
    }
}

@keyframes FadeInNext
{
    0%
    {
        opacity: 0;
        padding-right: 40px;
    }
    100%
    {
        opacity: 1;
        padding-right: 0px;
    }
}