CSS位置绝对菜单顶部

Question

我正在尝试添加通知图标，但文本溢出且不在左侧。

这是我的代码（运行代码段以查看结果）：

.dropdown {
    display: inline-block;
    cursor: pointer;
    border: 1px solid #fff;
}
.dropdown:hover {
    color: #e1a900;
}
.dropdown-content {
    background-color: #333333;
    display: none;
    position: relative;
    min-width: 180px;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
    z-index: 1;
    margin-top: 64px;
}
.dropdown-content a {
    color: #fff;
    font-weight: bold;
    padding: 12px 12px;
    text-decoration: none;
    display: block;
    -o-transition:color .2s ease-out, background .3s ease-in;
    -ms-transition:color .2s ease-out, background .3s ease-in;
    -moz-transition:color .2s ease-out, background .3s ease-in;
    -webkit-transition:color .2s ease-out, background .3s ease-in;
    transition:color .2s ease-out, background .3s ease-in;
}
.dropdown-content a:hover {background-color: #cc9900;}
.dropdown:hover .dropdown-content {display: block;}
.bellimg {
    padding-top: 5px;
}
.bellnumbers {
    font-size:12px;
    background-color:red;
    width:16px;
    line-height: 16px;
    text-align: center;
    color:#fff;
    z-index: 2;
    border-radius: 3px;
    position: absolute;
    left: 30px;
}
.bell {
    border: 1px solid #fff;
    width: 48px;
    height: 42px;
    left: 30;
    position: absolute;
}
.notificationicon {
    position: absolute;
    top: 0px;
    right: 0px;
    border: 1px solid #fff;
}
/********************************
* Menu Styles 					*
*********************************/
#menu {
	height: 64px;
	width: 450px;
}
#menu ul,#menu li {
	margin: 0;
	padding: 0;
	list-style: none;
}
#menu li {
	float: left;
	display: inline;
	position: relative;
}
#menu li a {
	color: #fff;
	font-weight: bold;
	-o-transition: color .2s ease-out, background .3s ease-in;
	-ms-transition: color .2s ease-out, background .3s ease-in;
	-moz-transition: color .2s ease-out, background .3s ease-in;
	-webkit-transition: color .2s ease-out, background .3s ease-in;
	transition: color .2s ease-out, background .3s ease-in;
}
#menu a {
	display: block;
	line-height: 35px;
	padding: 14px 10px 14px 5px;
	text-decoration: none;
	color: #fff;
	border-bottom: 1px solid #000;
}
#menu li:hover > a,#menu li a:hover {
	color: #fff;
	background-color: #e1a900;
}
#menu input {
	display: none;
	margin: 0 0;
	padding: 0 0;
	width: 80px;
	height: 35px;
	opacity: 0;
	cursor: pointer;
}
#menu label {
	display: none;
	width: 35px;
	height: 36px;
	line-height: 36px;
	text-align: center;
}
#menu label span {
	font-size: 13px;
	position: absolute;
	left: 35px;
}
#menu ul.menus {
	/*background sub menus*/
	height: auto;
	overflow: hidden;
	width: 180px;
	background-color: #333333;
	position: absolute;
	z-index: 99;
	display: none;
	border: 1px solid #000;
	border-top: none;
	color: #fff;
}
#menu ul.menus a {
	color: #fff;
	padding: 0px;
}
#menu ul.menus li {
	display: block;
	width: 100%;
	text-transform: none;
}
#menu li:hover ul.menus {
	display: block;
	border-top: 2px solid red; 
	border-bottom: 2px solid red;
}
#menu a.prett {
	padding: 14px 19px 14px 5px;
}
#menu li:hover > a.prett,#menu a.prett:hover {
	/*DropDown list background color*/
	background: #e1a900;
	color: #fff;
}
#menu a.prett::after {
	content: "";
	width: 0;
	height: 0;
	border-width: 6px 5px;
	border-style: solid;
	border-color: #eee transparent transparent transparent;
	position: absolute;
	top: 30px;
	right: 4px;
}
#menu ul.menus a:hover {
	/*Dropdown menu background color*/
	background: #e1a900;
}

@media screen and (max-width: 1000px){
	#menu {width: 150px;}
	
	#menu a {padding: 0px; border-bottom: 1px solid #000;}
	#menu a.prett {padding: 0px;}
	#menu a.prett::after {top: 15px;right: 4px;}
	
	
	#menu{position:relative;margin-top:0;}
	#menu ul{background-color: #333333;position:absolute;top:100%;right:0;left:0;z-index:3;height:auto;display:none;}
	#menu ul.menus{width:100%;position:static;border:none; border-top: 2px solid red; border-bottom: 2px solid red;}
	#menu li{display:block;float:none;width:auto;text-align:left}
	#menu li a{color:#fff}
	#menu li a:hover{color:#333}
	#menu li:hover{background:#e1a900;color:#fff;}
	#menu li:hover > a.prett,#menu a.prett:hover{background:#BABABA;color:#333;}
	#menu ul.menus a{background-color: #4d4d4d;}
	#menu ul.menus a:hover{background:#e1a900;}
	#menu input,#menu label{position:absolute;top:0;left:0;display:block;margin-top: 15px;}
	#menu input{z-index:4}
	#menu input:checked + label{color:#e1a900; background-color: #404040;}
	#menu input:checked ~ ul{display:block;}
}
.menu_head {
	width: 100%;
	height: 64px;
	background-color: #000;
	background-image: url("../images/menu.png");
	box-shadow: 0 3px 6px rgba(0,0,0, .8);
	background-position: top;
	text-align: center;
	padding-left: 10px;
	padding-right: 10px;
	position: fixed;
	top: 0;
	color: #fff;
	z-index:1;
	font-weight: bold;
	border: 1px solid #fff;
}

<div class='menu_head'>
		<!-- MENU LEFT -->
		<nav id='menu' style='border: 1px solid #fff;'>
			<input type='checkbox'/>
			<label>&#8801;<span>MENU</span></label>
			<ul>
				<li><a href=''>Home</a></li>
				<li><a class='prett' href='' onclick='return false;'>Rules</a>
					<ul class='menus'>
						<li><a href='#'>Rules </a></li>
					</ul>
				</li>
				<li><a class='prett' href='' onclick='return false;'>Suporte</a>
					<ul class='menus'>
						<li><a href='#'>Terms of Service</a></li>
					</ul>
				</li>
			</ul>
		</nav>
    <div class='notificationicon'>
<span class='bell'>
    <img class='bellimg' src='../images/notification.png'/>
    <span class='bellnumbers'>10</span>
</span>
<span class='dropdown'>
    <div style='float: right; line-height: 64px; margin-right:15px;'>Welcome asd asd asd asd x3G</div>
    <div class='dropdown-content'>
        <a href=''>PROFILE</a>
        <a href=''>TEAM</a>
        <a href=''> SETINGS</a>
        <a href=''>BALANCE</a>
        <a href=''> INBOX</a>
        <a href=''> LOG OUT</a>
    </div>
</span>
<div style='clear:both;'></div>
</div>
		<div style='clear:both;'></div>
	</div>

Answer 1

在 .bell 类上，您定义了 left 属性值，该值不带单位，例如px（请参见下图，以供参考）

只需添加一个 px 或％这样的单位，它就可以正常工作：

.bell {
    left: 30px;
}