Question

实际上我已经在我的页面中启用了滚动功能，但是当覆盖设置为true时，滚动条仍然存在。如果页面上有覆盖图，如何隐藏滚动？

＆＃13;

.overlay{
    display: none;
    opacity:0.8;
    background-color:#ccc;
    position:fixed;
    width:100%;
    height:100%;
    top:0px;
    left:0px;
    z-index:1000;
}

＆＃13;

<div onclick="show_overlay_fn()">
CLICK HERE
</div>
<br>

<div id="overlay" class="overlay"></div>

<script>
function show_overlay_fn(){
	document.getElementById("overlay").style.display = "block";
}
</script>
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＆＃13;

Answer 1

您可以使用element.style.overflow并为其指定属性值。我还测试了叠加点击以再次启用溢出。

function show_overlay_fn(){
	document.getElementById("overlay").style.display = "block";
    document.getElementsByTagName("body")[0].style.overflowY = 'hidden';
}
//click listener for overlay
document.getElementById('overlay').addEventListener('click',function(){
  document.getElementById("overlay").style.display = "none";
  document.getElementsByTagName("body")[0].style.overflowY = 'auto';
});

.overlay{
    display: none;
    opacity:0.8;
    background-color:#ccc;
    position:fixed;
    width:100%;
    height:100%;
    top:0px;
    left:0px;
    z-index:1000;
}

<div onclick="show_overlay_fn()">
CLICK HERE
</div>
<br>

<div id="overlay" class="overlay"></div>

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Answer 2

添加另一个类以冻结正文

body.freeze-scroll {
  overflow: hidden;
}

然后在点击功能

上添加此项

$('body').toggleClass('freeze-scroll');

Answer 3

您也可以使用css()

上的click function这样做

.overlay{
    display: none;
    opacity:0.8;
    background-color:#ccc;
    position:fixed;
    width:100%;
    height:100%;
    top:0px;
    left:0px;
    z-index:1000;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="overlay-click" onclick="show_overlay_fn()">
CLICK HERE
</div>
<br>

<div id="overlay" class="overlay"></div>

<script>
function show_overlay_fn(){
	document.getElementById("overlay").style.display = "block";
}


$('.overlay-click').click(function(){
  $('body').css("overflow","hidden")
});

</script>
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覆盖为真时隐藏滚动条

3 个答案: