我无法解决鼠标悬停时震动图像的问题。我有以下脚本:
function displayText(id)
{
var el = document.getElementById(id);
el.style.display = 'block';
}
function hideText(id)
{
var el = document.getElementById(id);
el.style.display = 'none';
}
.btn {
margin-top: -90px;
z-index: 999999999;
position: absolute;
text-align: center;
background: #37a000;
displa: block;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<a href='#' >
<img class="streamer_img" alt="example" src="https://placeimg.com/640/480/nature"
onmouseover="this.src='https://placeimg.com/640/480/people'; displayText('hiddentext')"
onmouseout="this.src='https://placeimg.com/640/480/nature'; hideText('hiddentext')" />
<p class="btn" id="hiddentext" style="display: none;">Watch/play</p>
</a>
一切都很好但是当我将鼠标移到显示的Watch文本上时,一切都开始动摇了。
我该如何解决这个问题?感谢
答案 0 :(得分:3)
问题是因为当您将鼠标悬停在Watch
元素上时会触发mouseout
上发生更改图像的img
事件。这反过来隐藏了文本,触发显示图像的mouseover
......等等。
要解决此问题,您可以将事件处理程序附加到父a
元素,然后在其中找到img
元素进行修改,如下所示:
function displayText(id) {
var el = document.getElementById(id);
el.style.display = 'block';
}
function hideText(id) {
var el = document.getElementById(id);
el.style.display = 'none';
}
&#13;
.btn {
margin-top: -90px;
z-index: 999999999;
position: absolute;
text-align: center;
background: #37a000;
displa: block;
}
&#13;
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<a href='#' onmouseenter="this.getElementsByClassName('streamer_img')[0].src='https://placeimg.com/640/480/people'; displayText('hiddentext')" onmouseleave="this.getElementsByClassName('streamer_img')[0].src='https://placeimg.com/640/480/nature'; hideText('hiddentext')">
<img class="streamer_img" alt="example" src="https://placeimg.com/640/480/nature" />
<p class="btn" id="hiddentext" style="display: none;">Watch/play</p>
</a>
&#13;
请注意,我将事件处理程序更改为onmouseenter
和onmouseleave
以获得更好的性能。
但是,您应该注意使用on*
事件属性非常过时。您应该使用不显眼的事件处理程序,如下所示:
window.addEventListener('load', function() {
var a = document.querySelector('a');
var img = document.querySelector('img');
var p = document.querySelector('p');
a.addEventListener('mouseenter', function() {
img.src = a.dataset.hoversrc;
p.style.display = 'block';
});
a.addEventListener('mouseleave', function() {
img.src = a.dataset.leavesrc;
p.style.display = 'none';
});
});
&#13;
.btn {
margin-top: -90px;
z-index: 999999999;
position: absolute;
text-align: center;
background: #37a000;
displa: block;
}
&#13;
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<a href='#' data-hoversrc="https://placeimg.com/640/480/people" data-leavesrc="https://placeimg.com/640/480/nature">
<img class="streamer_img" alt="example" src="https://placeimg.com/640/480/nature" />
<p class="btn" id="hiddentext" style="display: none;">Watch/play</p>
</a>
&#13;