javascript - IE7 : li's behaving badly

Question

JSFiddle:http://jsfiddle.net/F6LBV/1/

IE7 给我和我的网站带来了很多麻烦。尽管我很想在黑暗的小巷里与 Microsoft 会面并一劳永逸地解决这个问题，但我希望你们中的一个能提供帮助。

IE7 以两种方式伤害了我的 li 标签，第一种是不尊重它们的 width:auto; 属性，而不是扩展到最宽的 的宽度li，每个 li 缩小到它自己的副本加上填充的大小。

从这里可以看出:

接下来，IE7 不尊重我的 jQuery。当您将鼠标悬停在每个父 li 上时，我有一个动画 ul 向下滑动的功能。然而，IE7 出于某种原因(我认为它与 display: none 有关)在动画期间低估了我的 ul 的宽度，并在它完成后弹出正确的宽度。

从这里可以看出:

所以这是我的下拉列表的标记:

<div class="container_16">
    <div class="grid_16">
        <div id="breadcrumbs">
            <a href="http://rcnhca.org.uk/sites/first_steps" id="home"></a>
            <ul id="parent" class="grid_15 omega">
            <li><a href="http://rcnhca.org.uk/sites/first_steps/personal-and-people-development/">Personal and people development </a><ul class="child"><li><a href="http://rcnhca.org.uk/sites/first_steps/getting-started/">Getting started</a></li><li><a href="http://rcnhca.org.uk/sites/first_steps/communication/">Communication</a></li><li><a href="http://rcnhca.org.uk/sites/first_steps/health-safety-and-security/">Health, Safety and Security</a></li><li class="active" ><a href="http://rcnhca.org.uk/sites/first_steps/personal-and-people-development/">Personal and people development </a></li><li><a href="http://rcnhca.org.uk/sites/first_steps/quality/">Quality</a></li><li><a href="http://rcnhca.org.uk/sites/first_steps/equality-diversity-and-rights/">Equality, diversity and rights </a></li><li><a href="http://rcnhca.org.uk/sites/first_steps/clinical-skills/">Clinical skills</a></li><li><a href="http://rcnhca.org.uk/sites/first_steps/additional-material/">Additional material</a></li></ul></li><li><a href="#">Select a topic</a><ul class="child"><li><a href="http://rcnhca.org.uk/sites/first_steps/personal-and-people-development/performance-appraisal/">Performance appraisal </a></li><li><a href="http://rcnhca.org.uk/sites/first_steps/personal-and-people-development/personal-development-planning/">Personal development planning</a></li><li><a href="http://rcnhca.org.uk/sites/first_steps/personal-and-people-development/learning-and-development-opportunities/">Learning and development opportunities </a></li><li><a href="http://rcnhca.org.uk/sites/first_steps/personal-and-people-development/lifelong-learning/">Lifelong learning </a></li><li><a href="http://rcnhca.org.uk/sites/first_steps/personal-and-people-development/reflection/">Reflection</a></li></ul></li>                         </ul>

        </div>
    </div>
    <div id="supplements" class="grid_16">
        <div class="left">
            <a href="#" class="button alpha"><img src="http://rcnhca.org.uk/sites/first_steps/wp-content/themes/megaamazing/library/images/book-icon.png" alt="book icon">View competencies checklist</a>
        </div>
        <div class="right">
            <a href="#" class="button alpha bold"><img src="http://rcnhca.org.uk/sites/first_steps/wp-content/themes/megaamazing/library/images/rcn-icon.png" alt="rcn icon">Join the RCN</a>

            <a href="#" class="button omega">Reasons to joins</a>
        </div>
    </div>
</div>

和要启动的 css:

#breadcrumbs {
    position: relative;
    z-index: 4;
    height: 39px;
    padding-bottom: 3px;
    background: #ffffff;
    border: 0px solid;
    border-left: #3a90a7 2px solid;
    border-right: #3a90a7 2px solid;
    border-bottom: #3a90a7 2px solid;
    -webkit-border-bottom-left-radius: 5px;
    -webkit-border-bottom-right-radius: 5px;
    -moz-border-radius-bottomleft: 5px;
    -moz-border-radius-bottomright: 5px;
    border-bottom-left-radius: 5px;
    border-bottom-right-radius: 5px;
}

#breadcrumbs ul {
    list-style: none; 
    list-style-image: none; 
    margin: 0;
}

#breadcrumbs #home{
    display: block;
    position: relative;
    height: 39px;
    width: 54px;
    float: left;
    background-image: url(library/images/home_icon.png);
    background-repeat: no-repeat;
    background-position: 19px center;   
    text-indent: -999em;
}

#breadcrumbs ul#parent {
    display: block;
    height: 39px;
    float: right;
    right: 3px;
    position: relative;
    background: #f38630;
    -webkit-box-shadow: inset 0px -2px 0px 0px #cf7229;
    -moz-box-shadow: inset 0px -2px 0px 0px #cf7229;
    box-shadow: inset 0px -2px 0px 0px #cf7229;
    -webkit-border-bottom-left-radius: 5px;
    -webkit-border-bottom-right-radius: 5px;
    -moz-border-radius-bottomleft: 5px;
    -moz-border-radius-bottomright: 5px;
    border-bottom-left-radius: 5px;
    border-bottom-right-radius: 5px;
}

#breadcrumbs ul#parent li {
    position: relative;
    height: 39px;
    float: left;
    min-width: 1px; /* required to fix Opera bug */
    padding: 0 47px 0 15px;
    background-image: url(library/images/breadcrumb_seperator.png);
    background-repeat: no-repeat;
    background-position: right;
    line-height: 39px;
    zoom: 1;
}

#breadcrumbs ul#parent li a {
    display: block;
    height: 42px;
    position: relative;
    font-size: 15px;
    font-weight:900;
    color: #ffffff;
    text-decoration: none;
    text-shadow: 0px 2px 0px #cf7229;
}

#breadcrumbs ul li a:visited {
    color: #ffffff;
}
#breadcrumbs ul#parent li:first-child ul {
    left: -5px;
}
#breadcrumbs ul#parent li ul {
    position: absolute;
    z-index: 9998;
    left: -28px;
    top: 42px;
    background: #ffffff;
    border-left: #3a90a7 2px solid;
    border-right: #3a90a7 2px solid;
    border-bottom: #3a90a7 2px solid;
    -webkit-border-bottom-left-radius: 5px;
    -webkit-border-bottom-right-radius: 5px;
    -moz-border-radius-bottomleft: 5px;
    -moz-border-radius-bottomright: 5px;
    border-bottom-left-radius: 5px;
    border-bottom-right-radius: 5px;
    padding: 0 3px 0 3px;
    list-style-position: outside;
    min-width: 200px;
    width: auto;
    -webkit-box-shadow: 0px 6px 6px -6px rgba(0, 0, 0, 0.5);
    -moz-box-shadow: 0px 6px 6px -6px rgba(0, 0, 0, 0.5);
    box-shadow: 0px 6px 6px -6px rgba(0, 0, 0, 0.5);
}

.js #breadcrumbs ul#parent li ul {
    display:none;
}

.no-js #breadcrumbs ul#parent li ul {
    left: -999em;
}

#breadcrumbs ul#parent li ul li {
    float: none;
    display: block;
    position: relative;
    height: 26px;
    margin-bottom: 3px;
    padding: 0 15px;
    background-image: url(library/images/arrow-icon.png);
    background-position: -25px 50%;
    background-repeat: no-repeat;
    background-color: #738793;
    border-radius: 5px; 
    -moz-border-radius: 5px; 
    -webkit-border-radius: 5px;
    line-height: 26px;
    white-space: nowrap;
    zoom: 1;
    width: auto;
}

#breadcrumbs ul#parent li ul li a{
    display: block;
    color: #ffffff;
    text-decoration: none;
    text-shadow: none;
    font-weight: 100;
}

#breadcrumbs ul#parent li ul li.active, #breadcrumbs ul#parent li ul li:hover{
    background-color: #3393b5;
}

#breadcrumbs ul#parent li ul li.active, .no-js #breadcrumbs ul#parent li ul li:hover{
    background-position: 0px 50%;
    text-indent: 10px;
}

.no-js #breadcrumbs ul#parent li:hover ul, .no-js #breadcrumbs ul#parent li:focus ul {
    left: -5px;
}

以及为其设置动画的 jQuery:

$(document).ready(function(){

    // Fix background-position < IE8
    if ($('html').hasClass('oldie')) {
        $("ul.child li:not(.active)").each(function() {
            $(this).css('backgroundPosition', '-25px 50%');
        });
        $("#breadcrumbs ul")
    }

    //Animate dropdown menu
    $("#breadcrumbs>ul:not(.child)>li").each(function() {
        crumbWidth = $(this).width();
        if($(this).width() > $(this).children('ul.child').width()) {
            $(this).children('ul.child').width(crumbWidth + 43);
        }
    });
    $("#breadcrumbs>ul:not(.child)>li").hover(
      function () {
        var raquo = "&raquo;";
        $(this).children('ul.child').hoverFlow('mouseenter', {'height': 'show'},250).children('li:not(.active)').hover(
            function() {
                $(this).hoverFlow('mouseenter', {textIndent: 10, backgroundPosition: '-0px 50%'}, 250);
            },
            function () {
                $(this).hoverFlow('mouseleave', {textIndent: 0, backgroundPosition: '-25px 50%'}, 250);
            }
        );
      }, 
      function () {
        $(this).children('ul.child').hoverFlow('mouseleave', {'height': 'hide'}, 250).children('li').unbind();
      }
    );
});

实时站点:http://rcnhca.org.uk/sites/first_steps/

谢谢你们。

Answer 1

#breadcrumbs ul#parent li ul 上的

width:100% 似乎解决了这两个问题。 http://jsfiddle.net/F6LBV/4

目前已在 IE7 和 Chrome 中测试。