问题
https://jsfiddle.net/1exbczjy/
<body>
<section class="main">
<form class="search" action="">
<input type="search" id ="searchit" placeholder="search.." />
<ul class="results" id="searchlist">
</ul>
</form>
</section>
</body>
This is a demo of the code that I am trying to run , my original code contains js file which is dynamically populating my ul class using the innerHTML function but the output is same as the dummy list data I have provided.
I am not able to understand why my list tag does not work . I have tried to resolve it using other answers provided on this site , checking for z index and absolute and relative position of a and li tag.
回答1:
The reason is because on click, the input loses its :focus (as pointed out by shaochuancs) and the content is hidden before the click on the anchor is registered. A click event consists of mousedown and mouseup event. The loss of focus is triggered on mousedown anywhere on the page. So just prevent the loss of :focus on mousedown on the anchor tags. The rest of the code would function as expected, because the anchor tag click is triggered on mouseup.
So the issue can be dealt with some basic javascript/jQuery, by simply preventDefault() on mousedown on the anchor tags.
$("a").mousedown(function(ev) {
ev.preventDefault();
}
Note that in this code snippet the link doesn't load because it is blocked by the frame. But you can see in the console that the link is clicked.
$("a").mousedown(function(ev) {
ev.preventDefault();
console.log($(this).attr("href"));
console.log("Click triggered");
});/* * Copyright (c) 2012 Thibaut Courouble
* Licensed under the MIT License
================================================== */
body {
background: #f7f7f7;
color: #404040;
font-family: 'HelveticaNeue', 'Helvetica Neue', Helvetica, Arial, sans-serif;
font-size: 13px;
font-weight: normal;
line-height: 20px;
}
a {
color: #1e7ad3;
text-decoration: none;
}
a:hover {
text-decoration: underline
}
.container,
.main {
width: 640px;
margin-left: auto;
margin-right: auto;
height: 300px;
}
.main {
margin-top: 50px
}
input {
font-family: 'HelveticaNeue', 'Helvetica Neue', Helvetica, Arial, sans-serif;
font-size: 13px;
color: #555860;
}
.search {
position: relative;
margin: 0 auto;
width: 300px;
}
.search input {
height: 26px;
width: 100%;
padding: 0 12px 0 25px;
border-width: 1px;
border-style: solid;
border-color: #a8acbc #babdcc #c0c3d2;
border-radius: 13px;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
-ms-box-sizing: border-box;
-o-box-sizing: border-box;
box-sizing: border-box;
-webkit-box-shadow: inset 0 1px #e5e7ed, 0 1px 0 #fcfcfc;
-moz-box-shadow: inset 0 1px #e5e7ed, 0 1px 0 #fcfcfc;
-ms-box-shadow: inset 0 1px #e5e7ed, 0 1px 0 #fcfcfc;
-o-box-shadow: inset 0 1px #e5e7ed, 0 1px 0 #fcfcfc;
box-shadow: inset 0 1px #e5e7ed, 0 1px 0 #fcfcfc;
}
.search input:focus {
outline: none;
border-color: #66b1ee;
-webkit-box-shadow: 0 0 2px rgba(85, 168, 236, 0.9);
-moz-box-shadow: 0 0 2px rgba(85, 168, 236, 0.9);
-ms-box-shadow: 0 0 2px rgba(85, 168, 236, 0.9);
-o-box-shadow: 0 0 2px rgba(85, 168, 236, 0.9);
box-shadow: 0 0 2px rgba(85, 168, 236, 0.9);
}
.search input:focus+.results {
display: block
}
.search .results {
display: none;
position: absolute;
top: 35px;
left: 0;
right: 0;
z-index: 10000;
padding: 0;
margin: 0;
border-width: 1px;
border-style: solid;
border-color: #cbcfe2 #c8cee7 #c4c7d7;
border-radius: 3px;
background-color: #fdfdfd;
background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #fdfdfd), color-stop(100%, #eceef4));
background-image: -webkit-linear-gradient(top, #fdfdfd, #eceef4);
background-image: -moz-linear-gradient(top, #fdfdfd, #eceef4);
background-image: -ms-linear-gradient(top, #fdfdfd, #eceef4);
background-image: -o-linear-gradient(top, #fdfdfd, #eceef4);
background-image: linear-gradient(top, #fdfdfd, #eceef4);
-webkit-box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
-moz-box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
-ms-box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
-o-box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}
.search .results li {
display: block
}
.search .results li:first-child {
margin-top: -1px
}
.search .results li:first-child:before,
.search .results li:first-child:after {
display: block;
content: '';
width: 0;
height: 0;
position: absolute;
left: 50%;
margin-left: -5px;
border: 5px outset transparent;
}
.search .results li:first-child:before {
border-bottom: 5px solid #c4c7d7;
top: -11px;
}
.search .results li:first-child:after {
border-bottom: 5px solid #fdfdfd;
top: -10px;
}
.search .results li:first-child:hover:before,
.search .results li:first-child:hover:after {
display: none
}
.search .results li:last-child {
margin-bottom: -1px
}
.search .results li a {
display: block;
position: relative;
margin: 0 -1px;
padding: 6px 40px 6px 10px;
color: #808394;
font-weight: 500;
text-shadow: 0 1px #fff;
border: 1px solid transparent;
border-radius: 3px;
}
.search .results li a span {
font-weight: 200
}
.search .results li a:before {
content: '';
width: 18px;
height: 18px;
position: absolute;
top: 50%;
right: 10px;
margin-top: -9px;
}
.search .results li a:hover {
text-decoration: none;
color: #fff;
text-shadow: 0 -1px rgba(0, 0, 0, 0.3);
border-color: #2380dd #2179d5 #1a60aa;
background-color: #338cdf;
background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #59aaf4), color-stop(100%, #338cdf));
background-image: -webkit-linear-gradient(top, #59aaf4, #338cdf);
background-image: -moz-linear-gradient(top, #59aaf4, #338cdf);
background-image: -ms-linear-gradient(top, #59aaf4, #338cdf);
background-image: -o-linear-gradient(top, #59aaf4, #338cdf);
background-image: linear-gradient(top, #59aaf4, #338cdf);
-webkit-box-shadow: inset 0 1px rgba(255, 255, 255, 0.2), 0 1px rgba(0, 0, 0, 0.08);
-moz-box-shadow: inset 0 1px rgba(255, 255, 255, 0.2), 0 1px rgba(0, 0, 0, 0.08);
-ms-box-shadow: inset 0 1px rgba(255, 255, 255, 0.2), 0 1px rgba(0, 0, 0, 0.08);
-o-box-shadow: inset 0 1px rgba(255, 255, 255, 0.2), 0 1px rgba(0, 0, 0, 0.08);
box-shadow: inset 0 1px rgba(255, 255, 255, 0.2), 0 1px rgba(0, 0, 0, 0.08);
}
:-moz-placeholder {
color: #a7aabc;
font-weight: 200;
}
::-webkit-input-placeholder {
color: #a7aabc;
font-weight: 200;
}
.search li {
padding: 0px;
}
.search li a {
margin: 0px;
display: block;
width: 100%;
height: 100%;
}
.lt-ie9 .search input {
line-height: 26px
}
/*adding effect when the mouse is hovered over list item*/
/*adding effect when the mouse is hovered over list item*/<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<title>Input Autocomplete Suggestions Demo</title>
<link rel="shortcut icon" href="http://designshack.net/favicon.ico">
<link rel="icon" href="http://designshack.net/favicon.ico">
<body>
<section class="main">
<form class="search" action="">
<input type="search" id="searchit" placeholder="search.." />
<ul class="results" id="searchlist">
<li><a href="https://www.google.com">Tag A</a></li>
<li><a href="https://www.facebook.com">Tag B</a></li>
</ul>
</form>
</section>
</body>回答2:
The root cause is: when anchor tag is clicked, .search input lose its :focus status, which makes .search input:focus + .results { display: block } disabled and .search .results's display as none again -- As the <a> tag does not exist on page anymore, nothing happens. It has nothing to do with ul or li.
Here is a simplified example: https://jsfiddle.net/cshao/rtonLr4z/, the <a> won't work as in the question.
回答3:
There is also another possibility. If you set the decoration of the Anchor to none and change the background of the li on hovering the Achor link only works when you are hovering on the text of the Anchor but what you want is that the Anchor activates on the whole surface of the li, but how you can make that work is another thing.
来源：https://stackoverflow.com/questions/44773707/anchor-tag-not-working-inside-list-item