英文:
Image transition is not applying
问题
以下是你要翻译的内容：
"After hovering over a list item, I'm trying to show that list item's corresponding image. I have this working, but the problem is that the CSS transition is not. Do I need to add a CSS selector? Can I add the transition through JavaScript?
Not sure how to fix this, so any suggestions would be helpful, thanks.
Using bootstrap v5.3.0 alpha-1 as well."
请注意，代码部分不需要翻译。
英文:
After hovering over a list item, I'm trying to show that list items corresponding image. I have this working, but the problem is that the css transition is not.Do I need to add a css selector? Can I add the transition through javascript?
Not sure how to fix this so any suggestions would be helpful, thanks.
Using bootstrap v5.3.0 alpha-1 as well.
<!-- begin snippet: js hide: false console: true babel: false -->
<!-- language: lang-js -->
const test_list_items = document.querySelectorAll('.test_list_item');
test_list_items.forEach(element => {
element.addEventListener('mouseover', () => {
let previous_item = document.querySelector('.test_list_item.selected');
let current_item = element;
let previous_image = document.querySelector(`#test_image_${previous_item.id.slice(-1)}`);
let current_image = document.querySelector(`#test_image_${element.id.slice(-1)}`);
if (previous_item && previous_item.id !== current_item.id) {
let selected_item = current_item.id;
console.log(selected_item);
console.log(`previous image: ${previous_image.id}`);
console.log(`previous image: ${current_image.id}`);
previous_item.classList.remove('selected');
current_item.classList.add('selected');
// previous_image.style.opacity = 0;
previous_image.classList.remove('d-md-block');
// current_image.style.opacity = 1;
current_image.classList.add('d-md-block');
}
});
});
<!-- language: lang-css -->
.test_image .d-md-block {
/* position:absolute; */
/* opacity:1; */
/* transition: opacity 0.5s linear; */
transition-timing-function: opacity 3s ease-in;
}
<!-- language: lang-html -->
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha1/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-GLhlTQ8iRABdZLl6O3oVMWSktQOp6b7In1Zl3/Jr59b6EGGoI1aFkw7cmDA6j6gD" crossorigin="anonymous">
<link rel="stylesheet" href="{{ url_for('static', filename='css/index.css') }}" />
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.10.3/font/bootstrap-icons.css">
<section class="p-5">
<div class="container">
<h2 class="text-center display-5 fw-bold">test</h2>
<p class="lead text-center mb-5">
esstsgsgsgsgsgesgsgsgegsgsgesgsgsgessegsgsg
</p>
<div class="row g-4 justify-content-between">
<div class="col-md">
<div class="list-group list-group-flush">
<a href="#" class="list-group-item list-group-item-action d-flex justify-content-between align-items-start test_list_item selected" id="test_list_item_1">
<span class="badge">
<img src="https://cdn.shopify.com/s/files/1/1218/4290/products/Solid-101-DeepRed_1400x.jpg" style="height: 50px; width: 50px;">
</span>
<div class="ms-2 me-auto">
<div class="d-flex w-100">
<h5 class="mb-1">1</h5>
</div>
Content for list item
Content for list item
Content for list item
Content for list item
Content for list item
<!-- <p class="mb-1 text-muted">Some placeholder content in a paragraph.</p> -->
</div>
</a>
<a href="#" class="list-group-item list-group-item-action d-flex justify-content-between align-items-start test_list_item" id="test_list_item_2">
<span class="badge">
<img src="https://www.jbcandcompany.com/images/S%20Orange.png" style="height: 50px; width: 50px;">
</span>
<div class="ms-2 me-auto">
<div class="d-flex w-100">
<h5 class="mb-1">2</h5>
</div>
Content for list item
Content for list item
Content for list item
Content for list item
Content for list item
<!-- <p class="mb-1 text-muted">Some placeholder content in a paragraph.</p> -->
</div>
</a>
<a href="#" class="list-group-item list-group-item-action d-flex justify-content-between align-items-start test_list_item" id="test_list_item_3">
<span class="badge">
<img src="https://cdn.shopify.com/s/files/1/1218/4290/products/Solid-125-BrightPink_1024x.jpg" class="rounded-0" style="height: 75px; width: 75px; background-color: yellow;">
</span>
<div class="ms-2 me-auto">
<div class="d-flex w-100">
<h5 class="mb-1">3</h5>
</div>
Content for list item
Content for list item
Content for list item
Content for list item
Content for list item
<!-- <p class="mb-1 text-muted">Some placeholder content in a paragraph.</p> -->
</div>
</a>
</div>
</div>
<div class="col-md">
<div class="image_container">
<img src="https://cdn.shopify.com/s/files/1/1218/4290/products/Solid-101-DeepRed_1400x.jpg" class="test_image d-none d-md-block active" id="test_image_1" style="height: 500px; width: 700px;" />
<img src="https://www.jbcandcompany.com/images/S%20Orange.png" class="test_image d-none" id="test_image_2" style="height: 500px; width: 700px;" />
<img src="https://cdn.shopify.com/s/files/1/1218/4290/products/Solid-125-BrightPink_1024x.jpg" class="test_image d-none" id="test_image_3" style="height: 500px; width: 700px;" />
</div>
</div>
</div>
</div>
</section>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha1/dist/js/bootstrap.bundle.min.js" integrity="sha384-w76AqPfDkMBDXo30jS1Sgez6pr3x5MlQ1ZAGC+nuZB+EYdgRZgiwxhTBTkF7CXvN" crossorigin="anonymous"></script>
<script type="text/javascript" src="{{ url_for('static', filename='script/index.js') }}"></script>
<!-- end snippet -->
答案1
得分: 1
以下是您要翻译的内容：
Just add and remove fadein animation and you can achieve this:
const test_list_items = document.querySelectorAll('.test_list_item');
test_list_items.forEach(element => {
element.addEventListener('mouseover', () => {
let previous_item = document.querySelector('.test_list_item.selected');
let current_item = element;
let previous_image = document.querySelector(`#test_image_${previous_item.id.slice(-1)}`);
let current_image = document.querySelector(`#test_image_${element.id.slice(-1)}`);
if (previous_item && previous_item.id !== current_item.id) {
let selected_item = current_item.id;
console.log(selected_item);
console.log(`previous image: ${previous_image.id}`);
console.log(`previous image: ${current_image.id}`);
previous_item.classList.remove('selected');
current_item.classList.add('selected');
previous_image.style.opacity = 0;
previous_image.classList.remove('d-md-block');
previous_image.classList.remove('fade-in-image');
current_image.style.opacity = 1;
current_image.classList.add('d-md-block');
current_image.classList.add('fade-in-image');
}
});
});
.fade-in-image {
animation: fadeIn 5s;
-webkit-animation: fadeIn 5s;
-moz-animation: fadeIn 5s;
-o-animation: fadeIn 5s;
-ms-animation: fadeIn 5s;
}
@keyframes fadeIn {
0% { opacity: 0; }
100% { opacity: 1; }
}
@-moz-keyframes fadeIn {
0% { opacity: 0; }
100% { opacity: 1; }
}
@-webkit-keyframes fadeIn {
0% { opacity: 0; }
100% { opacity: 1; }
}
@-o-keyframes fadeIn {
0% { opacity: 0; }
100% { opacity: 1; }
}
@-ms-keyframes fadeIn {
0% { opacity: 0; }
100% { opacity: 1; }
}
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha1/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-GLhlTQ8iRABdZLl6O3oVMWSktQOp6b7In1Zl3/Jr59b6EGGoI1aFkw7cmDA6j6gD" crossorigin="anonymous">
<link rel="stylesheet" href="{{ url_for('static', filename='css/index.css') }}" />
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.10.3/font/bootstrap-icons.css">
<section class="p-5">
<div class="container">
<h2 class="text-center display-5 fw-bold">test</h2>
<p class="lead text-center mb-5">
esstsgsgsgsgsgesgsgsgegsgsgesgsgsgessegsgsg
</p>
<div class="row g-4 justify-content-between">
<div class="col-md">
<div class="list-group list-group-flush">
<a href="#" class="list-group-item list-group-item-action d-flex justify-content-between align-items-start test_list_item selected" id="test_list_item_1">
<span class="badge">
<img src="https://cdn.shopify.com/s/files/1/1218/4290/products/Solid-101-DeepRed_1400x.jpg" style="height: 50px; width: 50px;">
</span>
<div class="ms-2 me-auto">
<div class="d-flex w-100">
<h5 class="mb-1">1</h5>
</div>
Content for list item
Content for list item
Content for list item
Content for list item
Content for list item
<!-- <p class="mb-1 text-muted">Some placeholder content in a paragraph.</p> -->
</div>
</a>
<a href="#" class="list-group-item list-group-item-action d-flex justify-content-between align-items-start test_list_item" id="test_list_item_2">
<span class="badge">
<img src="https://www.jbcandcompany.com/images/S%20Orange.png" style="height: 50px; width: 50px;">
</span>
<div class="ms-2 me-auto">
<div class="d-flex w-100">
<h5 class="mb-1">2</h5>
</div>
Content for list item
Content for list item
Content for list item
Content for list item
Content for list item
<!-- <p class="mb-1 text-muted">Some placeholder content in a paragraph.</p> -->
</div>
</a>
<a href="#" class="list-group-item list-group-item-action d-flex justify-content-between align-items-start test_list_item" id="test_list_item_3">
<span class="badge">
<img src="https://cdn.shopify.com/s/files/1/1218/4290/products/Solid-125-BrightPink_1024x.jpg" class="rounded-0" style="height: 75px; width: 75px; background-color: yellow;">
</span>
<div class="ms-2 me-auto">
<div class="d-flex w-100">
<h5 class="mb-1">3</h5>
</div>
Content for list item
Content for list item
Content for list item
Content for list item
Content for list item
<!-- <p class="mb-1 text-muted">Some placeholder content in a paragraph.</p> -->
</div>
</a>
</div>
</div>
<div class="col-md">
<div class="image_container">
<img src="https://cdn.shopify.com/s/files/1/1218/4290/products/Solid-101-DeepRed_1400x.jpg" class="test_image d-none d-md-block active" id="test_image_1" style="height: 500px; width: 700px;" />
<img src="https://www.jbcandcompany.com/images/S%20Orange.png" class="test_image d-none" id="test_image_2" style="height: 500px; width: 700px;" />
<img src="https://cdn.shopify.com/s/files/1/1218/4290/products/Solid-125-BrightPink_1024x.jpg" class="test_image d-none" id="test_image_3" style="height: 500px; width: 700px;" />
</div>
</div>
</div>
</div>
</section>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha1/dist/js/bootstrap.bundle.min.js" integrity="sha384-w76AqPfDk
<details>
<summary>英文:</summary>
Just add and remove fadein animation and you can achieve this:
<!-- begin snippet: js hide: false console: true babel: false -->
<!-- language: lang-js -->
const test_list_items = document.querySelectorAll('.test_list_item');
test_list_items.forEach(element => {
element.addEventListener('mouseover', () => {
let previous_item = document.querySelector('.test_list_item.selected');
let current_item = element;
let previous_image = document.querySelector(`#test_image_${previous_item.id.slice(-1)}`);
let current_image = document.querySelector(`#test_image_${element.id.slice(-1)}`);
if (previous_item && previous_item.id !== current_item.id) {
let selected_item = current_item.id;
console.log(selected_item);
console.log(`previous image: ${previous_image.id}`);
console.log(`previous image: ${current_image.id}`);
previous_item.classList.remove('selected');
current_item.classList.add('selected');
// previous_image.style.opacity = 0;
previous_image.classList.remove('d-md-block');
previous_image.classList.remove('fade-in-image');
// current_image.style.opacity = 1;
current_image.classList.add('d-md-block');
current_image.classList.add('fade-in-image');
}
});
});
<!-- language: lang-css -->
.fade-in-image {
animation: fadeIn 5s;
-webkit-animation: fadeIn 5s;
-moz-animation: fadeIn 5s;
-o-animation: fadeIn 5s;
-ms-animation: fadeIn 5s;
}
@keyframes fadeIn {
0% { opacity: 0; }
100% { opacity: 1; }
}
@-moz-keyframes fadeIn {
0% { opacity: 0; }
100% { opacity: 1; }
}
@-webkit-keyframes fadeIn {
0% { opacity: 0; }
100% { opacity: 1; }
}
@-o-keyframes fadeIn {
0% { opacity: 0; }
100% { opacity: 1; }
}
@-ms-keyframes fadeIn {
0% { opacity: 0; }
100% { opacity: 1; }
}
<!-- language: lang-html -->
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha1/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-GLhlTQ8iRABdZLl6O3oVMWSktQOp6b7In1Zl3/Jr59b6EGGoI1aFkw7cmDA6j6gD" crossorigin="anonymous">
<link rel="stylesheet" href="{{ url_for('static', filename='css/index.css') }}" />
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.10.3/font/bootstrap-icons.css">
<section class="p-5">
<div class="container">
<h2 class="text-center display-5 fw-bold">test</h2>
<p class="lead text-center mb-5">
esstsgsgsgsgsgesgsgsgegsgsgesgsgsgessegsgsg
</p>
<div class="row g-4 justify-content-between">
<div class="col-md">
<div class="list-group list-group-flush">
<a href="#" class="list-group-item list-group-item-action d-flex justify-content-between align-items-start test_list_item selected" id="test_list_item_1">
<span class="badge">
<img src="https://cdn.shopify.com/s/files/1/1218/4290/products/Solid-101-DeepRed_1400x.jpg" style="height: 50px; width: 50px;">
</span>
<div class="ms-2 me-auto">
<div class="d-flex w-100">
<h5 class="mb-1">1</h5>
</div>
Content for list item
Content for list item
Content for list item
Content for list item
Content for list item
<!-- <p class="mb-1 text-muted">Some placeholder content in a paragraph.</p> -->
</div>
</a>
<a href="#" class="list-group-item list-group-item-action d-flex justify-content-between align-items-start test_list_item" id="test_list_item_2">
<span class="badge">
<img src="https://www.jbcandcompany.com/images/S%20Orange.png" style="height: 50px; width: 50px;">
</span>
<div class="ms-2 me-auto">
<div class="d-flex w-100">
<h5 class="mb-1">2</h5>
</div>
Content for list item
Content for list item
Content for list item
Content for list item
Content for list item
<!-- <p class="mb-1 text-muted">Some placeholder content in a paragraph.</p> -->
</div>
</a>
<a href="#" class="list-group-item list-group-item-action d-flex justify-content-between align-items-start test_list_item" id="test_list_item_3">
<span class="badge">
<img src="https://cdn.shopify.com/s/files/1/1218/4290/products/Solid-125-BrightPink_1024x.jpg" class="rounded-0" style="height: 75px; width: 75px; background-color: yellow;">
</span>
<div class="ms-2 me-auto">
<div class="d-flex w-100">
<h5 class="mb-1">3</h5>
</div>
Content for list item
Content for list item
Content for list item
Content for list item
Content for list item
<!-- <p class="mb-1 text-muted">Some placeholder content in a paragraph.</p> -->
</div>
</a>
</div>
</div>
<div class="col-md">
<div class="image_container">
<img src="https://cdn.shopify.com/s/files/1/1218/4290/products/Solid-101-DeepRed_1400x.jpg" class="test_image d-none d-md-block active" id="test_image_1" style="height: 500px; width: 700px;" />
<img src="https://www.jbcandcompany.com/images/S%20Orange.png" class="test_image d-none" id="test_image_2" style="height: 500px; width: 700px;" />
<img src="https://cdn.shopify.com/s/files/1/1218/4290/products/Solid-125-BrightPink_1024x.jpg" class="test_image d-none" id="test_image_3" style="height: 500px; width: 700px;" />
</div>
</div>
</div>
</div>
</section>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha1/dist/js/bootstrap.bundle.min.js" integrity="sha384-w76AqPfDkMBDXo30jS1Sgez6pr3x5MlQ1ZAGC+nuZB+EYdgRZgiwxhTBTkF7CXvN" crossorigin="anonymous"></script>
<script type="text/javascript" src="{{ url_for('static', filename='script/index.js') }}"></script>
<!-- end snippet -->
</details>
# 答案2
**得分**: 0
首先将先前的不透明度设置为0，然后当你想要滚动时，将不透明度设置为1；如果不设置先前的不透明度，你的过渡效果将不起作用。
<details>
<summary>英文:</summary>
First add your previous opacity: 0 and then when you want to scroll then set opacity: 1; if you will not set previous opacity. Your transition will not work.
</details>
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