如何将箭头定位在容器底部？我正在使用Bootstrap-5，但无法计算出它生命周期的所有位置属性。到目前为止，它只是与其他文本保持一致。我尝试过各种各样的方法，但如果能提供一些指导，那就太好了。
感谢您花时间帮助初学者。：(
.hero {
position: relative;
overflow: hidden;
}
@media screen and (min-width: 992px) {
.hero {
height: 100vh;
}
.custom-video,
.news-detail-image {
object-fit: cover;
width: 100vw;
height: 100vh;
}
.sticky-wrapper {
position: relative;
bottom: 76px;
}
}
.heroText {
position: absolute;
z-index: 9;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
width: 85%;
text-align: center;
}
.videoWrapper {
position: relative;
padding-bottom: 56.25%; /* 16:9 */
height: 0;
z-index: -100;
}
.custom-video {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
}<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.8.0/font/bootstrap-icons.css">
<section class="hero" id="hero">
<div class="heroText container">
<h1 class=" text-white">TITLE OF MY PAGE</h1>
<h3 class="subtitle fancy hidden-phone text-white"><span>SUBTITLE</span></h3>
<a href="#events" class="mx-auto text-center position-absolute bottom-0 mb-2 hidden-phone"><i class="bi bi-arrow-down-short"></i></a>
</div>
<div class="videoWrapper">
<img src="https://i.picsum.photos/id/1/5616/3744.jpg?hmac=kKHwwU8s46oNettHKwJ24qOlIAsWN9d2TtsXDoCWWsQ" class="custom-video">
</div>
<div class="overlay"></div>
</section>给你。。。我建议你把箭包在一个单独的容器里。
箭头不能位于底部的原因是您应该设置.heroText { height: 100%; ... }，但标题和副标题不会垂直居中。
请参阅下面的片段。
.hero {
position: relative;
overflow: hidden;
}
@media screen and (min-width: 992px) {
.hero {
height: 100vh;
}
.custom-video,
.news-detail-image {
object-fit: cover;
width: 100vw;
height: 100vh;
}
.sticky-wrapper {
position: relative;
bottom: 76px;
}
}
.heroText {
position: absolute;
z-index: 9;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
width: 85%;
text-align: center;
}
.videoWrapper {
position: relative;
padding-bottom: 56.25%;
/* 16:9 */
height: 0;
z-index: -100;
}
.custom-video {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
}
#wrapper {
width: 100%;
}<!DOCTYPE html>
<html lang='en'>
<head>
<meta charset='UTF-8'>
<meta http-equiv='X-UA-Compatible' content='IE=edge'>
<meta name='viewport' content='width=device-width, initial-scale=1.0'>
<title>Document</title>
<link rel='stylesheet' href='https://cdn.jsdelivr.net/npm/bootstrap@5.1.1/dist/css/bootstrap.min.css' integrity='sha384-F3w7mX95PdgyTmZZMECAngseQB83DfGTowi0iMjiWaeVhAn4FJkqJByhZMI3AhiU' crossorigin='anonymous'>
<script src='https://cdn.jsdelivr.net/npm/bootstrap@5.1.1/dist/js/bootstrap.min.js' integrity='sha384-skAcpIdS7UcVUC05LJ9Dxay8AXcDYfBJqt1CJ85S/CFujBsIzCIv+l9liuYLaMQ/' crossorigin='anonymous'></script>
</head>
<body>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.8.0/font/bootstrap-icons.css">
<section class="hero" id="hero">
<div class="heroText container">
<h1 class=" text-white">TITLE OF MY PAGE</h1>
<h3 class="subtitle fancy hidden-phone text-white"><span>SUBTITLE</span></h3>
</div>
<div class="videoWrapper">
<img src="https://i.picsum.photos/id/1/5616/3744.jpg?hmac=kKHwwU8s46oNettHKwJ24qOlIAsWN9d2TtsXDoCWWsQ" class="custom-video">
</div>
<div class="overlay"></div>
<div id="wrapper" class='d-flex justify-content-center'>
<a href="#events" class="mx-auto text-center position-absolute bottom-0 mb-2 hidden-phone"><i class="bi bi-arrow-down-short"></i></a>
</div>
</section>
</body>
</html>