修复CSS导航栏按钮浮动和方向

问题描述 投票：0回答：2

我在使用这个导航栏时遇到了麻烦：https://jsfiddle.net/d6a7b3Ly/1/

1-在栏中有很多链接，悬停效果会使另一个链接下方的链接移动到两侧，但我不确定哪个填充效果正在执行此操作以及如何修复它。

将border-top更改为0px时，它修复了问题，但使子菜单无效：

#nav .current a, #nav li:hover > a {
    background: #d1d1d1; /* for non-css3 browsers */
    filter:  progid:DXImageTransform.Microsoft.gradient(startColorstr='#ebebeb', endColorstr='#a1a1a1'); /* for IE */
    background: -webkit-gradient(linear, left top, left bottom, from(#ebebeb), to(#a1a1a1)); /* for webkit browsers */
    background: -moz-linear-gradient(top,  #ebebeb,  #a1a1a1); /* for firefox 3.6+ */

    color: #444;
    border-top: solid 1px #f8f8f8;
    -webkit-box-shadow: 0 1px 1px rgba(0, 0, 0, .2);
    -moz-box-shadow: 0 1px 1px rgba(0, 0, 0, .2);
    box-shadow: 0 1px 1px rgba(0, 0, 0, .2);
    text-shadow: 0 1px 0 rgba(255, 255, 255, .8);
}

2-我正在尝试制作菜单的right to left选项。我在csss中更改了float: right;下的#nav li {，并在<div dir="RTL">中添加了整个html，但是2级子菜单仍然朝左开放，它们应该是正确的。我测试了css中的一些变化，但没有一个适用于此。

这是rtl navbar：https://jsfiddle.net/ct8kp6eo/1/的链接

这是CSS中的浮动变化：

#nav li {
    margin: 0 5px;
    padding: 0 0 8px;
    float: right;
    position: relative;
    list-style: none;

}
html css drop-down-menu css-float submenu
2个回答
2
投票

要解决问题，请添加padding-top: 7px以调整border-top破坏布局到#nav ul li:hover a, #nav li:hover li a。

你有重叠的标签，并解决这个问题，将z-index的#nav li:hover > ul属性调整为1。

body {
	font: normal .8em/1.5em Arial, Helvetica, sans-serif;
	background: #ebebeb;
	width: 900px;
	margin: 100px auto;
	color: #666;
}
a {
	color: #333;
}
#nav {
	margin: 0;
	padding: 7px 6px 0;
	line-height: 100%;
	border-radius: 2em;

	-webkit-border-radius: 2em;
	-moz-border-radius: 2em;
	
	-webkit-box-shadow: 0 1px 3px rgba(0, 0, 0, .4);
	-moz-box-shadow: 0 1px 3px rgba(0, 0, 0, .4);

	background: #8b8b8b; /* for non-css3 browsers */
	filter:  progid:DXImageTransform.Microsoft.gradient(startColorstr='#a9a9a9', endColorstr='#7a7a7a'); /* for IE */
	background: -webkit-gradient(linear, left top, left bottom, from(#a9a9a9), to(#7a7a7a)); /* for webkit browsers */
	background: -moz-linear-gradient(top,  #a9a9a9,  #7a7a7a); /* for firefox 3.6+ */

	border: solid 1px #6d6d6d;
}
#nav li {
	margin: 0 5px;
	padding: 0 0 8px;
	float: left;
	position: relative;
	list-style: none;
}
/* main level link */
#nav a {
	font-weight: bold;
	color: #e7e5e5;
	text-decoration: none;
	display: block;
	padding:  8px 20px;
	margin: 0;
	-webkit-border-radius: 1.6em;
	-moz-border-radius: 1.6em;
	text-shadow: 0 1px 1px rgba(0, 0, 0, .3);
}
/* main level link hover */
#nav .current a, #nav li:hover > a {
	background: #d1d1d1; /* for non-css3 browsers */
	filter:  progid:DXImageTransform.Microsoft.gradient(startColorstr='#ebebeb', endColorstr='#a1a1a1'); /* for IE */
	background: -webkit-gradient(linear, left top, left bottom, from(#ebebeb), to(#a1a1a1)); /* for webkit browsers */
	background: -moz-linear-gradient(top,  #ebebeb,  #a1a1a1); /* for firefox 3.6+ */

	color: #444;
	border-top: solid 1px #f8f8f8;
  padding-top: 7px; /* ADDED */
	-webkit-box-shadow: 0 1px 1px rgba(0, 0, 0, .2);
	-moz-box-shadow: 0 1px 1px rgba(0, 0, 0, .2);
	box-shadow: 0 1px 1px rgba(0, 0, 0, .2);
	text-shadow: 0 1px 0 rgba(255, 255, 255, .8);
}
/* sub levels link hover */
#nav ul li:hover a, #nav li:hover li a {
	background: none;
	border: none;
	color: #666;
	-webkit-box-shadow: none;
	-moz-box-shadow: none;
}
#nav ul a:hover {
	background: #0399d4 !important; /* for non-css3 browsers */
	filter:  progid:DXImageTransform.Microsoft.gradient(startColorstr='#04acec', endColorstr='#0186ba'); /* for IE */
	background: -webkit-gradient(linear, left top, left bottom, from(#04acec), to(#0186ba)) !important; /* for webkit browsers */
	background: -moz-linear-gradient(top,  #04acec,  #0186ba) !important; /* for firefox 3.6+ */

	color: #fff !important;
	-webkit-border-radius: 0;
	-moz-border-radius: 0;
	text-shadow: 0 1px 1px rgba(0, 0, 0, .1);
}
/* level 2 list */
#nav ul {
	background: #ddd; /* for non-css3 browsers */
	filter:  progid:DXImageTransform.Microsoft.gradient(startColorstr='#ffffff', endColorstr='#cfcfcf'); /* for IE */
	background: -webkit-gradient(linear, left top, left bottom, from(#fff), to(#cfcfcf)); /* for webkit browsers */
	background: -moz-linear-gradient(top,  #fff,  #cfcfcf); /* for firefox 3.6+ */

	display: none;
	margin: 0;
	padding: 0;
	width: 185px;
	position: absolute;
	top: 35px;
	left: 0;
	border: solid 1px #b4b4b4;
	-webkit-border-radius: 10px;
	-moz-border-radius: 10px;
	border-radius: 10px;
	-webkit-box-shadow: 0 1px 3px rgba(0, 0, 0, .3);
	-moz-box-shadow: 0 1px 3px rgba(0, 0, 0, .3);
	box-shadow: 0 1px 3px rgba(0, 0, 0, .3);
}
/* dropdown */
#nav li:hover > ul {
	display: block;
  z-index: 1; /* ADDED */
}
#nav ul li {
	float: none;
	margin: 0;
	padding: 0;
}
#nav ul a {
	font-weight: normal;
	text-shadow: 0 1px 1px rgba(255, 255, 255, .9);
}
/* level 3+ list */
#nav ul ul {
	left: 181px;
	top: -3px;
}
/* rounded corners for first and last child */
#nav ul li:first-child > a {
	-webkit-border-top-left-radius: 9px;
	-moz-border-radius-topleft: 9px;
	-webkit-border-top-right-radius: 9px;
	-moz-border-radius-topright: 9px;
}
#nav ul li:last-child > a {
	-webkit-border-bottom-left-radius: 9px;
	-moz-border-radius-bottomleft: 9px;
	-webkit-border-bottom-right-radius: 9px;
	-moz-border-radius-bottomright: 9px;
}
/* clearfix */
#nav:after {
	content: ".";
	display: block;
	clear: both;
	visibility: hidden;
	line-height: 0;
	height: 0;
}
#nav {
	display: inline-block;
}
html[xmlns] #nav {
	display: block;
}
* html #nav {
	height: 1%;
}
<ul id="nav">
	<li class="current"><a href="#">Home</a></li>
	<li><a href="#">My Projects</a>
		<ul>
			<li><a href="#">N.Design Studio</a>
				<ul>
					<li><a href="#">Portfolio</a></li>
					<li><a href="#">WordPress Themes</a></li>
					<li><a href="#">Wallpapers</a></li>
					<li><a href="#">Illustrator Tutorials</a></li>
				</ul>
			</li>
			<li><a href="#">Web Designer Wall</a>
				<ul>
					<li><a href="#">Design Job Wall</a></li>
				</ul>
			</li>
			<li><a href="#">IconDock</a></li>
			<li><a href="#">Best Web Gallery</a></li>
		</ul>
	</li>
	<li><a href="#">Multi-Levels</a>
		<ul>
			<li><a href="#">Team</a>
				<ul>
					<li><a href="#">Sub-Level Item</a></li>
					<li><a href="#">Sub-Level Item</a>
						<ul>
							<li><a href="#">Sub-Level Item</a></li>
							<li><a href="#">Sub-Level Item</a></li>
							<li><a href="#">Sub-Level Item</a></li>
						</ul>
					</li>
					<li><a href="#">Sub-Level Item</a></li>
				</ul>
			</li>
			<li><a href="#">Sales</a></li>
			<li><a href="#">Another Link</a></li>
			<li><a href="#">Department</a>
				<ul>
					<li><a href="#">Sub-Level Item</a></li>
					<li><a href="#">Sub-Level Item</a></li>
					<li><a href="#">Sub-Level Item</a></li>
				</ul>
			</li>
		</ul>
	</li>
	<li><a href="#">About</a></li>
	<li><a href="#">Contact Us</a></li>
	<li><a href="#">Contact Us</a></li>
	<li><a href="#">Contact Us</a></li>
	<li><a href="#">Contact Us</a></li>
	<li><a href="#">Contact Us</a></li>
	<li><a href="#">Contact Us</a></li>
	<li><a href="#">Contact Us</a></li>
	<li><a href="#">Contact Us</a></li>
</ul>

要解决第二个问题，请将transform: translateX(-100%);添加到#nav ul ul规则而不是left值 - 请参阅下面的演示：

body {
	font: normal .8em/1.5em Arial, Helvetica, sans-serif;
	background: #ebebeb;
	margin: 100px auto;
	color: #666;
}
a {
	color: #333;
}
#nav {
	margin: 0;
	padding: 7px 6px 0;
	line-height: 100%;
	border-radius: 2em;

	-webkit-border-radius: 2em;
	-moz-border-radius: 2em;
	
	-webkit-box-shadow: 0 1px 3px rgba(0, 0, 0, .4);
	-moz-box-shadow: 0 1px 3px rgba(0, 0, 0, .4);

	background: #8b8b8b; /* for non-css3 browsers */
	filter:  progid:DXImageTransform.Microsoft.gradient(startColorstr='#a9a9a9', endColorstr='#7a7a7a'); /* for IE */
	background: -webkit-gradient(linear, left top, left bottom, from(#a9a9a9), to(#7a7a7a)); /* for webkit browsers */
	background: -moz-linear-gradient(top,  #a9a9a9,  #7a7a7a); /* for firefox 3.6+ */

	border: solid 1px #6d6d6d;
}
#nav li {
	margin: 0 5px;
	padding: 0 0 8px;
	float: right;
	position: relative;
	list-style: none;
  
}
/* main level link */
#nav a {
	font-weight: bold;
	color: #e7e5e5;
	text-decoration: none;
	display: block;
	padding:  8px 4px;
	margin: 0;
	-webkit-border-radius: 1.6em;
	-moz-border-radius: 1.6em;
	text-shadow: 0 1px 1px rgba(0, 0, 0, .3);
}
/* main level link hover */
#nav .current a, #nav li:hover > a {
	background: #d1d1d1; /* for non-css3 browsers */
	filter:  progid:DXImageTransform.Microsoft.gradient(startColorstr='#ebebeb', endColorstr='#a1a1a1'); /* for IE */
	background: -webkit-gradient(linear, left top, left bottom, from(#ebebeb), to(#a1a1a1)); /* for webkit browsers */
	background: -moz-linear-gradient(top,  #ebebeb,  #a1a1a1); /* for firefox 3.6+ */

	color: #444;
	border-top: solid 1px #f8f8f8;
	-webkit-box-shadow: 0 1px 1px rgba(0, 0, 0, .2);
	-moz-box-shadow: 0 1px 1px rgba(0, 0, 0, .2);
	box-shadow: 0 1px 1px rgba(0, 0, 0, .2);
	text-shadow: 0 1px 0 rgba(255, 255, 255, .8);
}
/* sub levels link hover */
#nav ul li:hover a, #nav li:hover li a {
	background: none;
	border: none;
	color: #666;
  
	-webkit-box-shadow: none;
	-moz-box-shadow: none;
}
#nav ul a:hover {
	background: #0399d4 !important; /* for non-css3 browsers */
	filter:  progid:DXImageTransform.Microsoft.gradient(startColorstr='#04acec', endColorstr='#0186ba'); /* for IE */
	background: -webkit-gradient(linear, left top, left bottom, from(#04acec), to(#0186ba)) !important; /* for webkit browsers */
	background: -moz-linear-gradient(top,  #04acec,  #0186ba) !important; /* for firefox 3.6+ */

	color: #fff !important;
	-webkit-border-radius: 0;
	-moz-border-radius: 0;
	text-shadow: 0 1px 1px rgba(0, 0, 0, .1);
}
/* level 2 list */
#nav ul {
	background: #ddd; /* for non-css3 browsers */
	filter:  progid:DXImageTransform.Microsoft.gradient(startColorstr='#ffffff', endColorstr='#cfcfcf'); /* for IE */
	background: -webkit-gradient(linear, left top, left bottom, from(#fff), to(#cfcfcf)); /* for webkit browsers */
	background: -moz-linear-gradient(top,  #fff,  #cfcfcf); /* for firefox 3.6+ */

	display: none;
	margin: 0;
	padding: 0;
	width: 185px;
	position: absolute;
	top: 35px;
	left: 10px
	border: solid 1px #b4b4b4;
	-webkit-border-radius: 10px;
	-moz-border-radius: 10px;
	border-radius: 10px;
	-webkit-box-shadow: 0 1px 3px rgba(0, 0, 0, .3);
	-moz-box-shadow: 0 1px 3px rgba(0, 0, 0, .3);
	box-shadow: 0 1px 3px rgba(0, 0, 0, .3);
}
/* dropdown */
#nav li:hover > ul {
	display: block;
}
#nav ul li {
	float: none;
	margin: 0;
	padding: 0;
}
#nav ul a {
	font-weight: normal;
	text-shadow: 0 1px 1px rgba(255, 255, 255, .9);
}
/* level 3+ list */
#nav ul ul {
	/*left: 181px;*/
	top: -3px;
  transform: translateX(-100%);
}
/* rounded corners for first and last child */
#nav ul li:first-child > a {
	-webkit-border-top-left-radius: 9px;
	-moz-border-radius-topleft: 9px;
	-webkit-border-top-right-radius: 9px;
	-moz-border-radius-topright: 9px;
}
#nav ul li:last-child > a {
	-webkit-border-bottom-left-radius: 9px;
	-moz-border-radius-bottomleft: 9px;
	-webkit-border-bottom-right-radius: 9px;
	-moz-border-radius-bottomright: 9px;
}
/* clearfix */
#nav:after {
	content: ".";
	display: block;
	clear: both;
	visibility: hidden;
	line-height: 0;
	height: 0;
}
#nav {
	display: inline-block;
}
html[xmlns] #nav {
	display: block;
}
* html #nav {
	height: 1%;
}
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "#">
 
<body>      
  <div dir="RTL">     
  
<ul id="nav" >     
	<li class="current" ><a href="#">Home</a></li>
	<li><a href="#">test </a>  
		<ul>
			<li><a href="#">test  ></a>  
				<ul>
					<li><a href="#">test  2</a></li>
					<li><a href="#">test   3</a></li>
					<li><a href="#">test test test test test  4</a></li>
					<li><a href="#">test  555 Tutorials</a></li>
				</ul> 
			<li><a href="#">test  </a>
				<ul>
					<li><a href="#">Design Job Wall</a></li>
				</ul>
			</li>
			<li><a href="#">IconDock</a></li>
			<li><a href="#">Best Web Gallery</a></li>
		</ul>
	</li>
	<li><a href="#">Multi-Levels</a>
		<ul>
			<li><a href="#">Team</a>
				<ul>
					<li><a href="#">Sub-Level Item</a></li>
					<li><a href="#">Sub-Level Item</a>
						<ul>
							<li><a href="#">Sub-Level Item</a></li>
							<li><a href="#">Sub-Level Item</a></li>
							<li><a href="#">Sub-Level Item</a></li>
						</ul>
					</li>
					<li><a href="#">Sub-Level Item</a></li>
				</ul>
			</li>
			<li><a href="#">Sales</a></li>
			<li><a href="#">Another Link</a></li>
			<li><a href="#">Department</a>
				<ul>
					<li><a href="#">Sub-Level Item</a></li>
					<li><a href="#">Sub-Level Item</a></li>
					<li><a href="#">Sub-Level Item</a></li>
				</ul>
			</li>
		</ul>
	</li>
	<li><a href="#">About</a></li>
	<li><a href="#">Contact Us</a></li>

</ul>
</div>
0
投票

您正在悬停时添加边框顶部实体1px。在悬停时将其更改为0px，它将正常工作。

#nav .current a, #nav li:hover > a {
	background: #d1d1d1; /* for non-css3 browsers */
	filter:  progid:DXImageTransform.Microsoft.gradient(startColorstr='#ebebeb', endColorstr='#a1a1a1'); /* for IE */
	background: -webkit-gradient(linear, left top, left bottom, from(#ebebeb), to(#a1a1a1)); /* for webkit browsers */
	background: -moz-linear-gradient(top,  #ebebeb,  #a1a1a1); /* for firefox 3.6+ */

	color: #444;
	/*border-top: solid 1px #f8f8f8;*/
    border-top: solid 0px #f8f8f8;      
	-webkit-box-shadow: 0 1px 1px rgba(0, 0, 0, .2);
	-moz-box-shadow: 0 1px 1px rgba(0, 0, 0, .2);
	box-shadow: 0 1px 1px rgba(0, 0, 0, .2);
	text-shadow: 0 1px 0 rgba(255, 255, 255, .8);
}

在悬停上添加1px顶部只是太多了，这会让你的物品移动

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