我的网站上有一个使用ES6 JS和CSS3构建的手风琴元素。我已经创建了一个用于打开和关闭这些手风琴的CSS3关键帧动画,但崩溃是突然的,并且不像开放动画那样平滑。我在下面的代码中做错了什么?我能做些什么来平滑这个?
const initial = (accordions) => {
accordions.forEach(accordion => {
accordion.classList.add('close')
})
}
const reset = (accordions) => {
accordions.forEach(accordion => {
accordion.classList.add('close')
accordion.classList.remove('open')
})
}
const toggle = (accordions) => {
accordions.forEach(accordion => {
accordion.onclick = function() {
if (accordion.classList.contains('open')) {
accordion.classList.remove('open')
accordion.classList.add('close')
} else {
reset(accordions)
accordion.classList.remove('close')
accordion.classList.add('open')
}
}
})
}
let accordions = Array(...document.querySelectorAll('.js-accordion'))
if (accordions.length) {
initial(accordions)
reset(accordions)
toggle(accordions)
}
@keyframes open {
0% {
display: none;
transform: translate3d(0, -1rem, 0);
opacity: 0;
}
1% {
display: block;
transform: translate3d(0, -1rem, 0);
opacity: 0;
}
100% {
transform: translate3d(0, 0, 0);
opacity: 1;
}
}
@keyframes close {
0% {
display: block;
opacity: 1;
}
99% {
display: none;
opacity: 0;
}
100% {
opacity: 0;
}
}
.faq {
padding: 4em 0;
}
.faq-item {
background-repeat: no-repeat;
background-size: 1.5em;
background-position: 100% 50%;
padding: 1em 0;
cursor: pointer;
border-bottom: 1px solid black;
}
.faq-item a {
text-decoration: none;
}
.faq-item.open {
background-image: url("accordion-minus.svg");
}
.faq-item.open .content {
animation: open 0.5s ease-in-out;
display: block;
}
.faq-item.close {
background-image: url("accordion-plus.svg");
}
.faq-item.close .content {
animation: close 0.5s ease-in-out;
display: none;
}
.faq-border {
border-bottom: 1px solid black;
}
.content {
width: 95%;
}
<div class="faq">
<h3>Acupuncture</h3>
<div class="faq-item js-accordion">
Question
<div class="content js-accordion-content">Answer</div>
</div>
</div>
我认为在这个切换动画中不需要动画或关键帧。你需要的是transition
和transform
。
display
不建议过渡。因为如果display:none,则dom不会获得维度visibility
的风格。这个元素处于隐藏状态时opacity
上显示它的风格对不起,如果我不清楚。
这是你需要的吗? .faq-item .content
.faq-item.open .content
TRY THIS FIDDLE
const initial = (accordions) => {
accordions.forEach(accordion => {
accordion.classList.remove('open')
})
}
const reset = (accordions) => {
accordions.forEach(accordion => {
accordion.classList.remove('open')
})
}
const toggle = (accordions) => {
accordions.forEach(accordion => {
accordion.onclick = function() {
if (accordion.classList.contains('open')) {
accordion.classList.remove('open')
} else {
reset(accordions)
accordion.classList.add('open')
}
}
})
}
let accordions = Array(...document.querySelectorAll('.js-accordion'))
if (accordions.length) {
initial(accordions)
reset(accordions)
toggle(accordions)
}