在垂直滑块同步中保持主幻灯片和垂直幻灯片与箭头(上一张和下一张)高度相等,可以通过以下步骤实现:
以下是一个示例代码片段,演示如何在垂直滑块同步中保持主幻灯片和垂直幻灯片与箭头高度相等:
<!DOCTYPE html>
<html>
<head>
<style>
.slider {
height: 300px;
overflow: auto;
}
.slide {
height: 300px;
width: 100%;
display: flex;
align-items: center;
justify-content: center;
font-size: 24px;
}
.arrow {
height: 50px;
width: 50px;
background-color: gray;
color: white;
display: flex;
align-items: center;
justify-content: center;
font-size: 24px;
}
</style>
</head>
<body>
<div class="slider">
<div class="slide">Slide 1</div>
<div class="slide">Slide 2</div>
<div class="slide">Slide 3</div>
<div class="slide">Slide 4</div>
<div class="slide">Slide 5</div>
</div>
<div class="arrow prev">←</div>
<div class="arrow next">→</div>
<script>
const slider = document.querySelector('.slider');
const slides = document.querySelectorAll('.slide');
const arrows = document.querySelectorAll('.arrow');
slider.addEventListener('scroll', syncHeight);
arrows.forEach(arrow => arrow.addEventListener('click', scrollSlide));
function syncHeight() {
const scrollTop = slider.scrollTop;
const slideIndex = Math.floor(scrollTop / slides[0].offsetHeight);
const currentSlide = slides[slideIndex];
slides.forEach(slide => {
slide.style.height = currentSlide.offsetHeight + 'px';
});
arrows.forEach(arrow => {
arrow.style.height = currentSlide.offsetHeight + 'px';
});
}
function scrollSlide(event) {
const direction = event.target.classList.contains('prev') ? -1 : 1;
const currentSlideIndex = Math.floor(slider.scrollTop / slides[0].offsetHeight);
const nextSlideIndex = currentSlideIndex + direction;
slider.scrollTo({
top: nextSlideIndex * slides[0].offsetHeight,
behavior: 'smooth'
});
}
</script>
</body>
</html>
在这个示例中,我们使用了一个包含滑块和箭头的HTML结构,并使用CSS样式设置了滑块、幻灯片和箭头的样式。通过JavaScript代码,我们监听了滑块的滚动事件,并在滚动事件中同步了主幻灯片、垂直幻灯片和箭头的高度。点击箭头时,滑块会滚动到下一个或上一个幻灯片。
请注意,这只是一个示例代码片段,实际应用中可能需要根据具体情况进行适当的修改和调整。
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