我有一个特殊的设置,允许并排设置4个图像,并以列表格式响应。
我正在尝试使用背景与文本相同的高度并延伸到图像的宽度,以便在悬停时垂直和水平居中。
我已经阅读了许多使用位置绝对/相对的文章,但我无法在我的代码中使用它。我尝试了垂直对齐,文本中心,顶部,左侧,宽度,但文本仍然保留在图像的底部。
以下是我点击的链接的大约10%:
我很抱歉这篇长篇文章(它的所有代码都只是跳过jsfiddle的代码)。
我的设置Here is a link to the jsFiddle:
HTML:
<ul class="tab">
<li>
<a class="tabimg gq-module-hover tilt" tabindex="0" data-about="Newborns"><img src="http://debora.com.au/wp-content/uploads/2016/11/DEB_0095.jpg" alt="">Newborns</a>
</li>
<li>
<a class="tabimg gq-module-hover" tabindex="1" data-about="Children"><img src="http://debora.com.au/wp-content/uploads/2016/11/DEB_8252.jpg" alt="">Children</a>
</li>
<li>
<a class="tabimg gq-module-hover" tabindex="2" data-about="Families"><img src="http://debora.com.au/wp-content/uploads/2016/11/DEB_8607.jpg" alt="">Families</a>
</li>
<li>
<a class="tabimg gq-module-hover" tabindex="3" data-about="Lifestyle"><img src="http://debora.com.au/wp-content/uploads/2016/11/DEB_6620.jpg" alt="">Lifestyle</a>
</li>
</ul>
CSS:
/* Style the list */
ul.tab {
whitespace: nowrap;
width: 100%;
list-style-type: none;
margin: 0;
padding: 0;
overflow: hidden;
text-align: center;
}
/* Style the a tags */
ul.tab li a {
display: inline-block;
color: black;
text-align: center;
text-decoration: none;
transition: 0.3s;
font-size: 17px;
-webkit-filter: grayscale(50%); /* Safari 6.0 - 9.0 */
filter: grayscale(50%);
}
/* Change background color of links on hover */
ul.tab li a:hover {
background-color: #000000;
-webkit-transform: scale(1.1, 1.1);
transform: scale(1.1, 1.1);
box-shadow: 1px 5px 14px rgba(0, 0, 0, 3);
z-index: 1;
-webkit-filter: grayscale(0%); /* Safari 6.0 - 9.0 */
filter: grayscale(0%);
}
/* Create an active/current tablink class */
ul.tab li a:focus, .active {
background-color: #ccc;
-webkit-filter: grayscale(0%); /* Safari 6.0 - 9.0 */
filter: grayscale(0%);
}
/* Style the tab content */
.tabcontent {
display: none;
padding: 6px 12px;
border: 1px solid #ccc;
border-top: none;
}
/*style the images*/
.tabimg {
box-sizing: border-box;
}
.tab {
font-size: 0; /* To get rid of the space below the li tags */
display: inline-block;
/* change this to display: block; in order to make the container as wide as the page is */
box-sizing: border-box;
overflow: hidden;
/* to clear the float */
}
.tab li {
box-sizing: border-box;
float: left;
width: 25%;
}
.tab li a {
width: 100%; /* remove this if you dont want the images to resize if the container is as wide as the page (if .tab is display: block;*) */
}
.tab li img {
width: 100%;
display: block;
box-sizing: border-box;
}
的Javascript
/* Simple foreach as the js foreach method is not supported by IE9 and you may want to support it.
CanIUse: http://caniuse.com/#search=foreach */
function simpleForEach(array, callback) {
for (var i = 0; i < array.length; i++) {
callback(array[i], i);
}
}
/* Parts of this can be done with pure css.
This function should executed on load:
document.addEventListener("load", load);
or on DOMContentLoaded:
document.addEventListener("DOMContentLoaded", load);
CanIUse: http://caniuse.com/#search=DOMContentLoaded. */
jQuery(document).ready(function(){
var tabimgs = document.getElementsByClassName("tabimg");
// for each tabimg
simpleForEach(tabimgs, function(tabimg) {
var cityName = tabimg.getAttribute("data-about");
// add the click event listener
tabimg.addEventListener("click", function(evt) {
// onclick do:
// hide all tabcontents
simpleForEach(document.getElementsByClassName("tabcontent"), function(tc) {
tc.style.display = "none";
});
// remove the active class
simpleForEach(document.getElementsByClassName("tabimg"), function(ti) {
ti.className = ti.className.replace(" active", "");
});
// show the current tab, and add "active" class to the link that opened the tab
document.getElementById(cityName);
tabimg.className += " active";
});
});
});
我非常感谢您对此提供一些帮助/指导。提前谢谢。
如果你错过了它:https://jsfiddle.net/74n5qf3q/1/
答案 0 :(得分:3)
以下是我的解决方法:https://jsfiddle.net/JustusFT/jrhk8L7j/
我用这种技术使它居中。 https://www.w3.org/Style/Examples/007/center.en.html#hv3
我将缩略图position:
设置为亲戚。这会导致基于父级定位absolute
定位的子元素。
新HTML:
<ul class="tab">
<li>
<a class="tabimg gq-module-hover tilt" tabindex="0" data-about="Newborns">
<img src="http://debora.com.au/wp-content/uploads/2016/11/DEB_0095.jpg" alt="">
<div class="caption">Newborns</div>
</a>
</li>
<li>
<a class="tabimg gq-module-hover" tabindex="1" data-about="Children"><img src="http://debora.com.au/wp-content/uploads/2016/11/DEB_8252.jpg" alt="">
<div class="caption">Children</div>
</a>
</li>
<li>
<a class="tabimg gq-module-hover" tabindex="2" data-about="Families"><img src="http://debora.com.au/wp-content/uploads/2016/11/DEB_8607.jpg" alt="">
<div class="caption">Families</div>
</a>
</li>
<li>
<a class="tabimg gq-module-hover" tabindex="3" data-about="Lifestyle"><img src="http://debora.com.au/wp-content/uploads/2016/11/DEB_6620.jpg" alt="">
<div class="caption">Lifestyle</div>
</a>
</li>
</ul>
CSS:
.tab li {
box-sizing: border-box;
float: left;
width: 25%;
position: relative;
/*Added*/
}
.tab li .caption {
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}
我还删除了text-align:center;