几乎所有的标题.我试图使这些圆形按钮水平滚动.我还想提供某种反馈给用户，是否有更多的滚动到任何方向，所以我试图通过覆盖来做到这一点.到目前为止，覆盖似乎是移动时滚动，我希望它坚持到侧面的圆形按钮.
下面是我试过的代码:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Scrollable Circular Buttons</title>
<style>
/* Custom styles */
.scrollable-div {
position: relative;
width: 50%;
overflow-x: auto;
white-space: nowrap;
padding: 10px 0;
margin-bottom: 20px;
/* Hide the scrollbar */
scrollbar-width: none;
}
.scrollable-div::-webkit-scrollbar {
display: none; /* WebKit (Safari, Chrome) */
}
.circular-btn {
display: inline-block;
width: 40px;
height: 40px;
border-radius: 50%;
background-color: #007bff; /* Bootstrap primary color */
color: #fff;
text-align: center;
line-height: 40px;
margin-right: 5px; /* Reduced margin */
cursor: pointer;
font-size: 16px;
}
.scroll-overlay {
position: absolute;
top: 0;
bottom: 0;
width: 50px; /* Adjust as needed */
pointer-events: none; /* Allow clicks to pass through */
}
.scroll-overlay-left {
left: 0;
background: linear-gradient(to right, rgba(0, 0, 0, 0.5), transparent);
}
.scroll-overlay-right {
right: 0;
background: linear-gradient(to left, rgba(0, 0, 0, 0.5), transparent);
}
.selected {
background-color: #28a745 !important; /* Bootstrap success color */
}
</style>
</head>
<body>
<div class="scrollable-div" id="scrollableDiv">
<!-- List of circular buttons -->
<div class="circular-btn selected">1</div>
<div class="circular-btn">2</div>
<div class="circular-btn">3</div>
<div class="circular-btn">4</div>
<div class="circular-btn">5</div>
<div class="circular-btn">6</div>
<div class="circular-btn">7</div>
<div class="circular-btn">8</div>
<div class="circular-btn">9</div>
<div class="circular-btn">10</div>
<div class="circular-btn">11</div>
<div class="circular-btn">12</div>
<div class="circular-btn">13</div>
<div class="circular-btn">14</div>
<div class="circular-btn">15</div>
<div class="circular-btn">16</div>
<div class="circular-btn">17</div>
<div class="circular-btn">18</div>
<div class="circular-btn">19</div>
<div class="circular-btn">20</div>
<div class="circular-btn">21</div>
<div class="circular-btn">22</div>
<div class="circular-btn">23</div>
<div class="circular-btn">24</div>
<div class="circular-btn">25</div>
<div class="circular-btn">26</div>
<div class="circular-btn">27</div>
<div class="circular-btn">28</div>
<div class="circular-btn">29</div>
<div class="circular-btn">30</div>
<!-- Scroll overlays to indicate end of content -->
<div class="scroll-overlay scroll-overlay-left"></div>
<div class="scroll-overlay scroll-overlay-right"></div>
</div>
<script>
document.addEventListener("DOMContentLoaded", function() {
const scrollableDiv = document.getElementById('scrollableDiv');
const scrollOverlayLeft = document.querySelector('.scroll-overlay-left');
const scrollOverlayRight = document.querySelector('.scroll-overlay-right');
// Check scroll status on initial load
updateOverlayVisibility();
// Update overlay visibility based on scroll position
scrollableDiv.addEventListener('scroll', updateOverlayVisibility);
function updateOverlayVisibility() {
const scrollPosition = scrollableDiv.scrollLeft;
const scrollWidth = scrollableDiv.scrollWidth;
overlayWidth = Math.min((scrollPosition / scrollWidth) * 50 , 50);
scrollOverlayLeft.style.width = overlayWidth + ' px';
scrollOverlayRight.style.width = overlayWidth + ' px';
scrollOverlayLeft.style.display = scrollPosition > 0 ? 'block' : 'none';
scrollOverlayRight.style.display = scrollPosition < scrollWidth ? 'block' : 'none';
}
// JavaScript for circular button selection
const circularButtons = document.querySelectorAll('.circular-btn');
circularButtons.forEach(function(btn) {
btn.addEventListener('click', function() {
// Remove 'selected' class from all buttons
circularButtons.forEach(function(btn) {
btn.classList.remove('selected');
});
// Add 'selected' class to the clicked button
this.classList.add('selected');
});
});
});
</script>
</body>
</html>
谢谢！