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HTML

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Adding Classes

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About the <head>

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CSS

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CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

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CSS Base

About CSS Base

It's a common practice to apply CSS to a page that styles elements such that they are consistent across all browsers. We offer two of the most popular choices: normalize.css and a reset. Or, choose Neither and nothing will be applied.

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JavaScript

About JavaScript Preprocessors

JavaScript preprocessors can help make authoring JavaScript easier and more convenient.

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Babel includes JSX processing.

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HTML 

              
                <nav id="nav">
		<div class="navbar navbar-default" role="navigation">
			<div class="container">
				<!-- Brand and toggle get grouped for better mobile display -->
				<div class="navbar-header">
					<button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
						<span class="icon-bar"></span>
						<span class="icon-bar"></span>
						<span class="icon-bar"></span>
					</button>
				</div>
				<div class="collapse navbar-collapse">
					<ul class="nav navbar-nav">
						<li><a href="https://www.minwt.com">選單1</a>
							<ul class="sub-menu">
								<li><a href="https://www.minwt.com">選單1-1</a></li>
								<li><a href="https://www.minwt.com">選單1-2</a></li>
								<li><a href="https://www.minwt.com">選單1-3</a>
									<ul class="sub-menu">
										<li><a href="https://www.minwt.com">選單1-3-1</a>
												<ul class="sub-menu">
													<li><a href="https://www.minwt.com">選單1-3-1-1</a></li>
													<li><a href="https://www.minwt.com">選單1-3-1-2</a></li>
													<li><a href="https://www.minwt.com">選單1-3-1-3</a>
															<ul class="sub-menu">
																<li><a href="https://www.minwt.com">選單1-3-1-3-1</a></li>
																<li><a href="https://www.minwt.com">選單1-3-1-3-2</a></li>
															</ul>
													</li>
												</ul>
										</li>
										<li><a href="https://www.minwt.com">選單1-3-2</a></li>
									</ul>
								</li>
								<li><a href="https://www.minwt.com">選單1-4</a></li>
							</ul>
						</li>
						<li><a href="https://www.minwt.com">選單2</a>
						<li><a href="https://www.minwt.com">選單3</a>
						<li><a href="https://www.minwt.com">選單4</a>
					</ul>
				</div>
				<!-- /.navbar-collapse -->
			</div>
		</div>
	</nav>
!

CSS 

              
                html, body, div, span, applet, object, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, pre, a, abbr, acronym, address, big, cite, code, del, dfn, em, font, img, ins, kbd, q, s, samp, small, strike, strong, sub, sup, tt, var, b, u, i, center, dl, dt, dd, ol, ul, li, fieldset, form, label, legend, .select_menu {
			margin: 0;
			padding: 0;
			border: 0;
			outline: 0;
			font-size: 100%;
			vertical-align: baseline;
			background:transparent;
			font-family:"微軟正黑體";
		}
		ol,
		ul {
			list-style: none;
		}
		ul.nav>li {
			position: relative;
		}
		ul.nav>li a:hover {
			text-decoration: none;
			background: #efefef; /*滑入選單底色*/
		}
		ul.nav>li ul>li{
			border-left: solid 1px #ccc;/*選單側邊線顏色*/
		}
		ul.nav>li>ul>li a{
			color: #333;/*選單連結顏色*/
			display: block;
			padding-top: 10px;
			padding-bottom: 10px;
			text-decoration:none;
		}
		ul.nav>li ul>li {border-bottom: solid 1px #ccc;} /*選單隔線顏色*/
		ul.nav>li ul>li:last-child{border-bottom:0;}
		ul.nav>li>ul li>ul.sub-menu {border-top: solid 1px #ccc;}/*子選單隔線顏色*/
		ul.nav>li>ul.sub-menu li>ul.sub-menu{display:none;}
		ul.nav>li ul {padding-left:20px;}/*階層式向後退的像素*/
		ul.nav>li ul>li>a:before{
			font-family: 'FontAwesome';
			content: '\f105';
			padding-right:7px;
			padding-left:7px;
			font-size:10px;
		}
		/*桌機*/
		@media(min-width:768px) {
			ul>li>a>b.arrow:after {
				font-family: 'FontAwesome';
				content: '\f078';
				font-size: 12px;
				position: absolute;
				right: 0;
			}
			ul>li>ul>li>a>b.arrow:after {
				font-family: 'FontAwesome';
				content: '\f078';
				font-size: 15px;
				position: absolute;
				top:0;
				right: 0;
				padding:10px 15px;
			}
			ul>li>ul>li>a>b.on:after {
				font-family: 'FontAwesome';
				content: '\f00d';
			}
			ul.nav>li:hover>a+ul {
				visibility: visible;
				opacity: 1;
			}
			ul.nav>li>ul.sub-menu {
				position: absolute;
				top: 50px;
				left: 0;
				z-index: 9999;
				background: #fff;
				width: 20vw;
				text-align: left;
				border-left: solid 1px #ededed;
				border-bottom: solid 1px #ededed;
				border-right: solid 1px #ededed;
				box-shadow: 0px 5px 2px rgba(0, 0, 0, 0.3);
				opacity: 0;
				visibility: hidden;
				-webkit-transition: all .5s;
				transition: all .5s;
			}
		}
		/*手機*/
		@media(max-width:768px) {
			b.arrow:after {
				font-family: 'FontAwesome';
				content: '\f078';
				position: absolute;
				top: 3px;
				right: 0;
				padding: 10px 20px 10px 40px;
			}
			a.dropdown+ul {
				display: none;
			}
			b.on:after {
				font-family: 'FontAwesome';
				content: '\f00d';
			}
			ul.nav>li>a {border-bottom: solid 2px #ccc;}/*選單隔線顏色*/
			ul.nav>li:last-child>a {border-bottom: 0;}			
			ul.nav>li>ul.sub-menu {
				border-bottom: solid 2px #ccc;/*子選單隔線顏色*/
			}
		}
!

JS 

              
                $(function () {
			var DROPDOWN = 'dropdown'
			var ON = 'on'
			var SLIDETOGGLE_SPEED = 'slow'
			var ARROW = '<b class="arrow"></b>'
			var $nav = $('ul.nav')
			$nav.find('li>ul').prev().addClass(DROPDOWN).append(ARROW)
			$nav.find('li>a>b').click(function (event) {
				event.preventDefault();
				$(this).toggleClass(ON);
				$(this).parent().next().slideToggle(SLIDETOGGLE_SPEED);
			});

			$(window).resize(function () {
				if($(window).width()>768){
					$nav.find('li a b').removeClass(ON);
					$nav.find('.sub-menu').css('display', '');
				}
			});
		});
!
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