更改Bootstraps轮播中的箭头颜色

Question

我显然在这里错过了一些愚蠢的东西.我有白色背景的图像,所以我希望能够编辑Bootstraps Carousel上的箭头,以便它们可见.如此多的改变箭头的颜色(不像我做的那样背景).

CSS

.carousel-control-prev-icon, .carousel-control-next-icon {
    height: 100px;
    width: 100px;
    outline: black;
    background-color: rgba(0, 0, 0, 0.3);
    background-size: 100%, 100%;
    border-radius: 50%;
    border: 1px solid black;
}

轮播HTML

<div class = 'col-md-9'>

    <div id="carouselExampleIndicators" class="carousel slide" data-ride="carousel">

        <ol class="carousel-indicators">
            <li data-target="#carouselExampleIndicators" data-slide-to="0" class="active"></li>
            <li data-target="#carouselExampleIndicators" data-slide-to="1"></li>
            <li data-target="#carouselExampleIndicators" data-slide-to="2"></li>
        </ol>

        <div class="carousel-inner" role="listbox">
            <div class="carousel-item active">
                <img class="d-block img-fluid" src="carousel/Bars%20and%20Dots.jpg" alt="First slide" class = 'img-responsive'>
            </div>

            <div class="carousel-item">
                <img class="d-block img-fluid" src="carousel/murial.jpg" alt="Second slide" class = 'img-responsive'>
            </div>

            <div class="carousel-item">
                <img class="d-block img-fluid" src="carousel/Upper%20Partialism%20album%20covers004white.jpg" alt="Third slide" class = 'img-responsive'>
            </div>
        </div>

        <a class="carousel-control-prev" href="#carouselExampleIndicators" role="button" data-slide="prev">
            <span class="carousel-control-prev-icon" aria-hidden="true"></span>
            <span class="sr-only">Previous</span>
        </a>

        <a class="carousel-control-next" href="#carouselExampleIndicators" role="button" data-slide="next">
            <span class="carousel-control-next-icon" aria-hidden="true"></span>
            <span class="sr-only">Next</span>
        </a>

    </div>

</div>

Answer 1

我知道这是一个较旧的帖子,但它帮助了我.我还发现,对于bootstrap v4,您还可以通过覆盖控件来更改箭头颜色,如下所示:

.carousel-control-prev-icon {
 background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%23fff' viewBox='0 0 8 8'%3E%3Cpath d='M5.25 0l-4 4 4 4 1.5-1.5-2.5-2.5 2.5-2.5-1.5-1.5z'/%3E%3C/svg%3E") !important;
}

.carousel-control-next-icon {
  background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%23fff' viewBox='0 0 8 8'%3E%3Cpath d='M2.75 0l-1.5 1.5 2.5 2.5-2.5 2.5 1.5 1.5 4-4-4-4z'/%3E%3C/svg%3E") !important;
}

您fill='%23fff'将末尾的fff 更改为您想要的任何十六进制值的位置.例如:

fill='%23000'黑色,fill='%23ff0000'红色等.只是一个注释,我没有在没有!important声明的情况下测试过.

Answer 2

我希望这有效,欢呼.

.carousel-control-prev-icon,
.carousel-control-next-icon {
  height: 100px;
  width: 100px;
  outline: black;
  background-size: 100%, 100%;
  border-radius: 50%;
  border: 1px solid black;
  background-image: none;
}

.carousel-control-next-icon:after
{
  content: '>';
  font-size: 55px;
  color: red;
}

.carousel-control-prev-icon:after {
  content: '<';
  font-size: 55px;
  color: red;
}

Answer 3

如果只想在Bootstrap 4中将它们变黑。

.carousel-control-next,
.carousel-control-prev {
    filter: invert(100%);
}

Answer 4

您还应该使用：<span><i class="fa fa-angle-left" aria-hidden="true"></i></span>使用fontawesome。您必须覆盖原始代码。执行以下操作，您将可以在CSS上进行自定义：

<a class="carousel-control-prev" href="#carouselExampleIndicatorsTestim" role="button" data-slide="prev">
    <span><i class="fa fa-angle-left" aria-hidden="true"></i></span>
    <span class="sr-only">Previous</span>
</a>
<a class="carousel-control-next" href="#carouselExampleIndicatorsTestim" role="button" data-slide="next">
    <span><i class="fa fa-angle-right" aria-hidden="true"></i></span>
    <span class="sr-only">Next</span>
 </a>

原始代码

<a class="carousel-control-prev" href="#carouselExampleIndicators" role="button" data-slide="prev">
    <span class="carousel-control-prev-icon" aria-hidden="true"></span>
    <span class="sr-only">Previous</span>
</a>

<a class="carousel-control-next" href="#carouselExampleIndicators" role="button" data-slide="next">
    <span class="carousel-control-next-icon" aria-hidden="true"></span>
    <span class="sr-only">Next</span>
</a>

Answer 5

将 .carousel-dark 添加到 .carousel 以获得更暗的控件、指示器和标题。

Bootstrap 5 文档

Answer 6

目前，Bootstrap 4 使用带有嵌入 SVG 数据信息的背景图像，其中包括 SVG 形状的颜色。就像是：

.carousel-control-prev-icon { background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%23fff' viewBox='0 0 8 8'%3E%3Cpath d='M5.25 0l-4 4 4 4 1.5-1.5-2.5-2.5 2.5-2.5-1.5-1.5z'/%3E%3C/svg%3E"); }

注意关于fill='%23fff'它的部分用颜色填充形状，在这种情况下为#fff（白色），红色只需替换为#f00

最后，包含此内容是安全的（下一个图标的更改相同）：

.carousel-control-prev-icon {background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%23f00' viewBox='0 0 8 8'%3E%3Cpath d='M5.25 0l-4 4 4 4 1.5-1.5-2.5-2.5 2.5-2.5-1.5-1.5z'/%3E%3C/svg%3E"); }