[英]Implementing rounded corners on slide down navigation menu
I am working on the slide down menu you can see here . 我正在使用下拉菜单,您可以在这里看到。 I have rounded corners on both
ul#navigation
and ul.subnavigation
. 我在
ul#navigation
和ul.subnavigation
。 When the submenu slides down it is possible to see the border at the bottom of ul.subnavigation
overlap with the content of ul#navigation
, when I would like it to slide down smoothly, without the 'flicker'. 当子菜单向下滑动时,可以看到
ul.subnavigation
底部的ul.subnavigation
与ul#navigation
的内容重叠,当我希望它平滑向下滑动时,不会出现“闪烁”的情况。 I am aware that this issue is caused by the rounded corners. 我知道此问题是由圆角引起的。 I need
ul.subnavigation
to cover the rounded corners at the bottom of ul#navigation
when the menu drops down, without seeing the double border-bottom issue. 当菜单下拉时,我需要
ul.subnavigation
覆盖ul#navigation
底部的圆角,而不会看到双重底边框问题。 I hope this is clear! 我希望这很清楚! Code is below.
代码如下。
Thanks, 谢谢,
Nick 缺口
HTML 的HTML
<ul id="navigation">
<li class="dropdown"><a href="#">menu</a>
<ul class="sub_navigation">
<li><a href="#">home</a></li>
<li><a href="#">help</a></li>
<li><a href="#">disable tips</a></li>
</ul>
</li>
</ul>
JQUERY JQUERY
$('.dropdown').hover(function() {
$(this).find('.sub_navigation').slideToggle();
});
CSS 的CSS
ul#navigation, ul.sub_navigation {
margin:0;
padding:0;
list-style-type:none;
min-width:100px;
background-color: white;
font-size:15px;
font-family: Trebuchet MS;
text-align: center;
-khtml-border-radius: 0 0 5px 5px;
-moz-border-radius: 0 0 5px 5px;
-webkit-border-radius: 0 0 5px 5px;
border-radius: 0 0 5px 5px;
border:1px black solid;
border-top:none;
}
ul.sub_navigation {
margin-left:-1px;
position: absolute;
top:28px;
}
ul#navigation {
float:left;
position:absolute;
top:0;
}
ul#navigation li {
float:left;
min-width:100px;
}
ul.sub_navigation {
position:absolute;
display:none;
}
ul.sub_navigation li {
clear:both;
}
a,
a:active,
a:visited {
display:block;
padding:7px;
}
Why position the submenu? 为什么要定位子菜单? Remove the positioning on it and just hide it till hover triggers.
移开它的位置,然后隐藏它,直到悬停触发为止。
Check this fiddle . 检查这个小提琴 。
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