我使用:after
将click事件限制为click-event:auto
伪元素,并创建了一个span来绑定父元素内的事件。为什么跨度不起作用?
function toggle(){
var button=document.querySelector('.toggle');
var bar=document.querySelector('.slide');
if(bar.className==='slide up'){
bar.className='slide down';
}else{
bar.className='slide up';
}
}
function click(){
document.body.innerHTML+='<div>Hello</div>';
}
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span{
position:relative;
top:90px;
background:green;
cursor:pointer;
pointer-event:auto;
}
*{
margin:0px;
padding:0px;
height:100%;
width:100%;
}
.box{
overflow:hidden;
background-image: url('http://tombricker.smugmug.com/Travel/San-Francisco-California/i-jk2Z7D7/0/L/san-francisco-golden-gate-bridge-morning-sun-bricker-L.jpg');
background-size: cover;
background-position:center;
}
.slide{
position: relative;
left:39vw;
width: 55vw;
height: 77vh;
background: red;
pointer-events:none;
}
.slide:before {
pointer-events:auto;
cursor:pointer;
content: '';
position:absolute;
top:-3vh;
width: 0px;
height: 0px;
border-left:27.5vw solid transparent;
border-right:27.5vw solid transparent;
border-bottom:3vh solid white;
}
.slide.down{
transform:translateY(100vh);
}
.slide.up{
transform:translateY(23vh);
}
.slide.up:before{
transform:translateY(3vh) rotateX(180deg);
}
.slide{
transition:transform 0.4s ease-out;
}
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<div class='box'>
<div class='slide up' onclick='toggle()'><span onclick='click()'>Hello</span></div>
</div>
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白色三角形是.slide:之前。我使用click-event:auto;在上面。我不确定我是否应该使用AUTO或ALL。然后我使用click-event:none;在.slide类上,它是它下面的红色矩形。所以现在,我不能点击红色矩形只是白色三角形,使其上下滑动。但我仍然想点击红色矩形的一部分来做其他事情(不一定要滑动)。所以我在div里面添加了一个span(绿色Hello),即矩形+三角形。然后我编写JS代码,以便在单击绿色Hello时,将将Hello添加到HTML的正文中。但它不起作用。
我学会了这种span方法here,但我不太明白。
答案 0 :(得分:1)
一些事情:
//listen for click event on toggle element
document.querySelector(".toggler").addEventListener("click", function(){
this.parentElement.classList.toggle("up");
});
//listen for click event on hello
document.querySelector(".clicker").addEventListener("click", function(){
var div = document.createElement("div");
var text = document.createTextNode("Hello");
div.appendChild(text);
document.body.appendChild(div);
});
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html, body{
height:100%;
}
*{
margin:0px;
padding:0px;
}
.clicker{
position:relative;
top:90px;
background:green;
cursor:pointer;
}
.box{
overflow:hidden;
background-image: url('http://tombricker.smugmug.com/Travel/San-Francisco-California/i-jk2Z7D7/0/L/san-francisco-golden-gate-bridge-morning-sun-bricker-L.jpg');
background-size: cover;
background-position:center;
height:100%;
width:100%;
}
.slide{
position: relative;
left:39vw;
width: 55vw;
height: 77vh;
background: red;
transform:translateY(100vh);
transition:transform 0.4s ease-out;
}
.slide.up{
transform:translateY(23vh);
}
.toggler {
cursor:pointer;
content: '';
position:absolute;
top:-3vh;
width: 0px;
height: 0px;
border-left:27.5vw solid transparent;
border-right:27.5vw solid transparent;
border-bottom:3vh solid white;
}
.slide.up .toggler{
transform:translateY(3vh) rotateX(180deg);
}
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<div class='box'>
<div class='slide up'>
<span class='toggler'></span>
<span class='clicker'>Hello</span>
</div>
</div>
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更好:
这种效果可以在没有JavaScript的情况下完成。请改用sibling selectors,标签和复选框。 See working demo here