如何删除下拉式基础5中的蓝色高光颜色？

Question

我目前正在创建下拉菜单，该菜单将切换到侧边栏的右侧。我想删除下拉菜单周围的蓝色。我使用Foundation 5来创建下拉菜单。

以下是我制作的screenshot of dropdown

以下是我使用的CSS和HTML代码

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.f-dropdown1 {
	display: none;
	left: -9999px;
	list-style: none;
	margin-left: 0;
	position: absolute;
	background: #FFFFFF;
	border: solid 1px #cccccc;
	font-size: 0.875rem;
	height: auto;
	max-height: none;
	width: 100%;
	z-index: 89;
	margin-top: 2px;
	max-width: 200px;
}

.f-dropdown1.open {
	display: block;
}

.f-dropdown1>*:first-child {
	margin-top: 0;
}
.f-dropdown1>*:last-child {
	margin-bottom: 0;
}
.f-dropdown1:before {
	border: inset 6px;
	content: "";
	display: block;
	height: 0;
	width: 0;
	border-color: transparent transparent #FFFFFF transparent;
	border-bottom-style: solid;
	position: absolute;
	top: -12px;
	left: 10px;
	z-index: 89;
}
.f-dropdown1:after {
	border: inset 7px;
	content: "";
	display: block;
	height: 0;
	width: 0;
	border-color: transparent transparent #cccccc transparent;
	border-bottom-style: solid;
	position: absolute;
	top: -14px;
	left: 9px;
	z-index: 88;
}
.f-dropdown1.right:before {
	left: auto;
	right: 10px;
}
.f-dropdown1.right:after {
	left: auto;
	right: 9px;
}
.f-dropdown1.drop-right {
	display: none;
	left: -9999px;
	list-style: none;
	margin-left: 0;
	/*    position: absolute;
*/
	background: #FFFFFF;
	border: solid 1px #cccccc;
	font-size: 0.875rem;
	height: auto;
	max-height: none;
	width: 100%;
	z-index: 89;
	margin-top: 0;
	margin-left: 65px;
	max-width: 200px;
}
.f-dropdown1.drop-right.open {
	display: block;
}
.f-dropdown1.drop-right>*:first-child {
	margin-top: 0;
}
.f-dropdown1.drop-right>*:last-child {
	margin-bottom: 0;
}
.f-dropdown1.drop-right:before {
	border: inset 6px;
	content: "";
	display: block;
	height: 0;
	width: 0;
	border-color: transparent #FFFFFF transparent transparent;
	border-right-style: solid;
	position: absolute;
	top: 10px;
	left: -12px;
	z-index: 89;
}
.f-dropdown1.drop-right:after {
	border: inset 7px;
	content: "";
	display: block;
	height: 0;
	width: 0;
	border-color: transparent #cccccc transparent transparent;
	border-right-style: solid;
	position: absolute;
	top: 9px;
	left: -14px;
	z-index: 88;
}
.f-dropdown1 ul:active {
	border: 1px solid red !important;
}
.f-dropdown1 li {
	cursor: pointer;
	font-size: 0.875rem;
	line-height: 1.125rem;
	margin: 0;
}
.f-dropdown1 li:hover, .f-dropdown li:focus {
	background: #EEEEEE;
	border: none;
}
.f-dropdown1 li a {
	display: block;
	padding: 0.5rem;
	color: #555555;
}
.f-dropdown1.content {
	display: none;
	left: -9999px;
	list-style: none;
	margin-left: 0;
	position: absolute;
	background: #FFFFFF;
	border: solid 1px #cccccc;
	font-size: 0.875rem;
	height: auto;
	max-height: none;
	padding: 1.25rem;
	width: 100%;
	z-index: 89;
	max-width: 200px;
}
.f-dropdown1.content.open {
	display: block;
}
.f-dropdown1.content>*:first-child {
	margin-top: 0;
}
.f-dropdown1.content>*:last-child {
	margin-bottom: 0;
}
.f-dropdown1.radius {
	border-radius: 3px;
}
.f-dropdown1.tiny {
	max-width: 200px;
}
.f-dropdown1.small {
	max-width: 300px;
}
.f-dropdown1.medium {
	max-width: 500px;
}
.f-dropdown1.large {
	max-width: 800px;
}
.f-dropdown1.mega {
	width: 100% !important;
	max-width: 100% !important;
}
.f-dropdown1.mega.open {
	left: 0 !important;
}
.dropdown.button, button.dropdown {
	position: relative;
	padding-right: 3.5625rem;
}
.dropdown.button::after, button.dropdown::after {
	border-color: #FFFFFF transparent transparent transparent;
	border-style: solid;
	content: "";
	display: block;
	height: 0;
	position: absolute;
	top: 50%;
	width: 0;
}
.dropdown.button::after, button.dropdown::after {
	border-width: 0.375rem;
	right: 1.40625rem;
	margin-top: -0.15625rem;
}
.dropdown.button::after, button.dropdown::after {
	border-color: #FFFFFF transparent transparent transparent;
}
.dropdown.button.tiny, button.dropdown.tiny {
	padding-right: 2.625rem;
}
.dropdown.button.tiny:after, button.dropdown.tiny:after {
	border-width: 0.375rem;
	right: 1.125rem;
	margin-top: -0.125rem;
}
.dropdown.button.tiny::after, button.dropdown.tiny::after {
	border-color: #FFFFFF transparent transparent transparent;
}
.dropdown.button.small, button.dropdown.small {
	padding-right: 3.0625rem;
}
.dropdown.button.small::after, button.dropdown.small::after {
	border-width: 0.4375rem;
	right: 1.3125rem;
	margin-top: -0.15625rem;
}
.dropdown.button.small::after, button.dropdown.small::after {
	border-color: #FFFFFF transparent transparent transparent;
}
.dropdown.button.large, button.dropdown.large {
	padding-right: 3.625rem;
}
.dropdown.button.large::after, button.dropdown.large::after {
	border-width: 0.3125rem;
	right: 1.71875rem;
	margin-top: -0.15625rem;
}
.dropdown.button.large::after, button.dropdown.large::after {
	border-color: #FFFFFF transparent transparent transparent;
}
.dropdown.button.secondary:after, button.dropdown.secondary:after {
	border-color: #333333 transparent transparent transparent;
}

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<a data-options="align:right" data-dropdown="drop1" aria-controls="drop1" aria-expanded="false" href="#" class="left"><i class="fa fa-bell-o" aria-hidden="true"></i></a>
<ul id="drop1" class="f-dropdown1" data-dropdown-content aria-hidden="true" tabindex="-1">
  				<li><a href="#">This is a link</a></li>
  				<li><a href="#">This is another</a></li>
  				<li><a href="#">Yet another</a></li>
			</ul>
			

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Answer 1

自定义基础提供的scss默认值或使用您自己的css文件覆盖它们。

More in their documentation here

如果你没有运行SASS，那么你需要你的覆盖样式表来到基础之后，这样你就不需要像使用那样做傻事了！重要。

在文档的示例中，它们的触发器是一个带有“按钮”类的按钮，因此您需要覆盖该类以获得所需的外观：

<a class="button" data-dropdown="tinyDrop" aria-controls="tinyDrop" aria-expanded="false">Link Dropdown »</a>

就个人而言，我会添加这样的内容来覆盖而不是更改默认的.button样式：

.button.my-dropdown-style {...}

Answer 2

.f-dropdown1 {
  outline: none;
}