我正在处理管理信息中心，我正在查看以下示例： http://pixaza.com/40-free-login-and-contact-form-in-css-html/#
CSS看起来像这样：
*, html, body, div, dl, dt, dd, ul, ol, li, h1, h2, h3, h4,
h5, h6, pre, form, label, fieldset, input, p, blockquote, th, td {
margin: 0;
padding: 0;
}
table {
border-collapse: collapse;
border-spacing: 0;
}
fieldset, img { border: 0; }
address, caption, cite, code, dfn, em, strong, th, var {
font-style: normal;
font-weight: normal;
}
caption, th { text-align: left; }
h1, h2, h3, h4, h5, h6 { font-weight: normal; }
q:before, q:after { content: ''; }
strong { font-weight: bold; }
em { font-style: italic; }
a img { border: none; } /* Gets rid of IE's blue borders */
a { text-decoration: none; }
body { font-size: 1em; /* Prevents an IE bug where em's scale out of proportion */ }
/* ---------- CLEARFIX ---------- */
/* For modern browsers */
.cf:before,
.cf:after {
content: "";
display: table;
}
.cf:after { clear:both; }
/* For IE 6/7 (trigger hasLayout) */
.cf { zoom: 1; }
/* ---------- GENERAL ---------- */
.round {
border-radius: 0.3125em; /* 5/16 */
-moz-border-radius: 0.3125em; /* 5/16 */
-webkit-border-radius: 0.3125em; /* 5/16 */
}
p {
margin-bottom: 1.25em; /* 20/16 */
color: #9498a1;
}
.fl { float: left; }
.fr { float: right; }
.cb { clear: both; }
.half-size-column {
width: 48%;
}
div.stripe-separator {
background: transparent url('separator-bg.png') repeat-x left center;
height: 0.562em; /* 9/16 */
display: block;
margin: 1.25em 0; /* 20/16 */
}
h1, h2, h3, h4, h5, h6 { margin-bottom: 0.625em; /* 10/16 */ }
/*Temporary styles*/
ul.temporary-button-showcase {
list-style-type: none;
}
ul.temporary-button-showcase li {
width: 24%;
float: left;
margin-bottom: 1em;
}
code {
display: inline-block;
background-color: #f8f9fa;
border: 1px solid #eeefef;
padding: 0.416em 0.833em; /* 5/12 10/12 */
color: #2a2e36;
}
blockquote {
display: block;
font-style: italic;
border-left: 2px solid #eeefef;
padding-left: 0.833em; /* 10/12 */
color: #9498a1;
}
cite {
font-style: italic;
font-weight: bold;
display: block;
padding-left: 0.833em; /* 10/12 */
margin-top: 0.833em; /* 10/12 */
color: #9498a1;
}
/* ---------- TYPOGRAPHY ---------- */
body, form {
font-family: "Droid Sans", Helvetica, Arial, sans-serif;
line-height: 1.125em; /* 18/16 */
}
p, .button, form input, ul#nav li ul, ul#tabs, div.side-menu ul li a, table,
.information-box, .confirmation-box, .error-box, .warning-box, ol, .regular-ul,
.custom-ul, blockquote, cite { font-size: 0.75em; /* 12/16 */ }
div.content-module-heading span { font-size: 0.625em; /* 10/16 */ }
form p input[type="text"], form p input[type="password"], form p input[type="checkbox"], form p input[type="radio"] { font-size: 1em; /* 12/12. I did 12 because they're contained within a P tag, that has font size of 12px*/ }
h1 { font-size: 1.125em; /* 18/16 */ }
h2 { font-size: 0.875em; /* 14/16 */ }
h3 { font-size: 0.75em; /* 12/16 */ }
h4 { font-size: 0.685em; /* 11/16 */ }
h5 { font-size: 0.625em; /* 10/16 */ }
/* ---------- COLORS ---------- */
a { color: #2069b4; }
a:hover { color: #2a2e36; }
p a, p a:hover { border-bottom: 1px dotted; }
.blue {
background-color: #2069b4;
color: white;
}
.blue:hover {
background-color: #5081b3;
color: white;
}
/* ---------- WIDTHS ---------- */
/* Form Inputs Style */
.default-width-input { width: 20.833em; /* Default Value. Equals 250px for the 12px font size */ }
.full-width-input { width: 95%; }
/* Textarea Style */
.full-width-textarea {
width: 95%;
height: 12.5em; /* 150/12 */
}
/* Page Container Style */
.page-full-width { padding: 0 1.875em; /* 30/16 */ }
.page-limited {
width: 60em; /* 960/16 */
margin: 0 auto;
}
/* ---------- BUTTONS ---------- */
.button {
padding: 0.833em; /* 10/12 */
display: inline-block;
text-decoration: none;
background-repeat: no-repeat;
}
.dark {
background-color: #3f4551;
color: white;
}
.dark:hover {
background-color: #5d6677;
color: white;
}
.text-upper { text-transform: uppercase; }
.small-button { padding: 0.312em 1em; /* 5/16 16/16 */ }
.image-left {
background-position: 0.833em center; /* 10/12 */
padding-left: 3em; /* 36/12 */
}
.image-right {
background-position: right center;
padding-right: 3em; /* 36/12 */
}
.ic-left-arrow { background-image: url("icons/ic_left.png"); }
.ic-right-arrow { background-image: url("icons/ic_right.png"); }
.ic-print { background-image: url("icons/ic_print.png"); }
.ic-cancel { background-image: url("icons/ic_cancel.png"); }
.ic-delete { background-image: url("icons/ic_delete.png"); }
.ic-add { background-image: url("icons/ic_add.png"); }
.ic-download { background-image: url("icons/ic_download.png"); }
.ic-edit { background-image: url("icons/ic_edit.png"); }
.ic-favorite { background-image: url("icons/ic_favorite.png"); }
.ic-lock { background-image: url("icons/ic_lock.png"); }
.ic-power { background-image: url("icons/ic_power.png"); }
.ic-refresh { background-image: url("icons/ic_refresh.png"); }
.ic-settings { background-image: url("icons/ic_settings.png"); }
.ic-upload { background-image: url("icons/ic_upload.png"); }
.ic-search { background-image: url("icons/ic_zoom.png"); }
.ic-table-edit { background-image: url("icons/table/actions-edit.png"); }
.ic-table-delete { background-image: url("icons/table/actions-delete.png"); }
/* ---------- MENU BUTTONS ---------- */
.menu-email { background-image: url("icons/menu/menu-email.png"); }
.menu-email:hover { background-image: url("icons/menu/menu-email-over.png"); }
.menu-email-special {
background-image: url("icons/menu/menu-email-special.png");
color: #7fcdff;
}
.menu-settings { background-image: url("icons/menu/menu-settings.png"); }
.menu-settings:hover { background-image: url("icons/menu/menu-settings-over.png"); }
.menu-logoff { background-image: url("icons/menu/menu-logoff.png"); }
.menu-logoff:hover { background-image: url("icons/menu/menu-logoff-over.png"); }
.menu-user { background-image: url("icons/menu/menu-user.png"); }
/* ---------- FORMS ---------- */
form label {
display: block;
text-transform: uppercase;
color: #2a2e36;
margin: 0 0 0.3125em 0;
}
form label.alt-label { text-transform: none; }
form input[type="text"], input[type="password"], textarea {
border: 1px solid #d9dbdd;
padding: 1em 0.625em; /* 16/16 10/16 */
outline: none;
}
form input[type="text"]:hover, input[type="password"]:hover, textarea:hover,
form input[type="text"]:focus, input[type="password"]:focus, textarea:focus {
border: 1px solid #bbbdbe;
}
form input[type="checkbox"], form input[type="radio"] { margin-right: 0.833em; /* 10/12 */ }
form input[type="submit"] {
border: none;
cursor: pointer;
padding: 0.833em; /* 10/12 */
background-position: right center;
padding-right: 3em; /* 36/12 */
background-repeat: no-repeat;
font-weight: bold;
text-transform: uppercase;
}
form#search-form input {
border: none;
/* The inner text overflows on the BG image, so we're setting a right padding to stop that */
padding-right: 3em; /* 36/12 */
}
form#search-form input:focus {
/* Same as .dark:hover */
background-color: #5d6677;
color: white;
}
form p em {
margin-top: 0.833em; /* 10/12 */
display: block;
}
form p.form-error, form p.form-error label { color: #cf4425; }
form p.form-error em {
background: transparent url('icons/message-boxes/error.png') no-repeat left center;
padding-left: 2em; /* 24/12 */
}
form input.error-input { border: 1px solid #ff876f; }
form input.error-input:hover { border: 1px solid #b03e27; }
/* Styling the HTML5 placeholders */
/* So far they don't work in: IE, Opera 10 and below, Firefox 3.6 and below */
::-webkit-input-placeholder { color: #858d9c; }
:-moz-placeholder { color: #858d9c; }
/* ---------- CONTENT BOXES ---------- */
.information-box, .confirmation-box, .error-box, .warning-box {
padding: 0.833em 0.833em 0.833em 3em; /* 10/12 36/12 */
margin-bottom: 0.833em; /* 20/12 */
}
.information-box {
background: #e5f5f9 url('icons/message-boxes/information.png') no-repeat 0.833em center;
border: 1px solid #cae0e5;
color: #5a9bab;
}
.confirmation-box {
background: #e7fae6 url('icons/message-boxes/confirmation.png') no-repeat 0.833em center;
border: 1px solid #b7cbb6;
color: #52964f;
}
.error-box {
background: #fde8e4 url('icons/message-boxes/error.png') no-repeat 0.833em center;
border: 1px solid #e6bbb3;
color: #cf4425;
}
.warning-box {
background: #fdf7e4 url('icons/message-boxes/warning.png') no-repeat 0.833em center;
border: 1px solid #e5d9b2;
color: #b28a0b;
}
/* ---------- MENU ---------- */
ul#nav {
list-style-type: none;
}
ul#nav > li {
float: left;
margin-right: 0.312em; /* 5/16 */
position: relative;
}
ul#nav li:first-child { margin-left: 0; }
ul#nav li:hover ul { left: 0; /* On hover, we make the submenu visible again */ }
/* Persistent hover state, exactly the same style as the inner anchor on hover (.dark:hover) */
ul#nav li:hover a {
background-color: #5d6677;
color: white;
}
ul#nav li.v-sep {
border-right: 1px solid #3f4551;
margin-right: 0.625em; /* 10/16 */
padding-right: 0.625em; /* 10/16 */
}
ul#nav li ul {
list-style-type: none;
position: absolute;
z-index: 999;
margin-top: -2px;
left: -9999px;
}
ul#nav li ul li a {
color: white;
padding: 0.833em 0 0.833em 3em;
border-top: 1px solid #6a7282;
background: #5d6677 url('menu-indicator.png') no-repeat right center;
display: block;
width: 100%;
white-space: nowrap;
}
ul#nav li ul li:last-child a {
border-bottom-right-radius: 0.3125em; /* 5/16 */
border-bottom-left-radius: 0.3125em; /* 5/16 */
-moz-border-bottom-right-radius: 0.3125em; /* 5/16 */
-moz-border-bottom-left-radius: 0.3125em; /* 5/16 */
-webkit-border-bottom-right-radius: 0.3125em; /* 5/16 */
-webkit-border-bottom-left-radius: 0.3125em; /* 5/16 */
}
ul#nav li ul li a:hover { background-color: #7a8497; }
/* ---------- TOP + HEADER ---------- */
div#top-bar {
background-color: #2a2e36;
padding: 0.625em 0; /* 10/16 */
}
div#header { padding: 1.25em 0; /* 20/16 */ }
div#header-with-tabs { padding: 1.25em 0 0 0; /* 20/16 */ }
div#login-intro {
background: transparent url('login-icon.png') no-repeat left center;
padding: 0.312em 0 0.312em 3.125em;
}
div#login-intro h1 { text-transform: uppercase; margin: 0.312em 0 0 0; }
div#login-intro h5 { color: #9498a1; }
a#company-branding img { height: 39px; }
a#company-branding-small img { height: 30px; }
/* ---------- TABS ---------- */
ul#tabs { list-style-type: none; }
ul#tabs li { float: left; }
ul#tabs li a {
border: 1px solid #eeefef;
border-bottom: none;
padding: 1.666em 0.833em; /* 20/12 10/12 */
margin: 0 0.416em -1px 0;
display: block;
color: #9498a1;
}
ul#tabs li a:hover { color: #2a2e36; }
ul#tabs li a.dashboard-tab {
background: transparent url('tab-dashboard.png') no-repeat 0.833em center /* 10/12 */;
padding-left: 3em; /* 36/12 */
}
ul#tabs li a.active-tab, ul#tabs li a.active-tab:hover {
background-color: #f8f9fa;
font-weight: bold;
color: #2a2e36;
}
/* ---------- TABLES ---------- */
table { width: 100%; margin-bottom: 1.25em; /* 20/16 */ }
table th {
background-color: #5d6677;
color: white;
text-transform: uppercase;
padding: 1.25em 0 1.25em 1.25em; /* 15/12 */
border-left: 1px solid #747c8a;
}
table tbody td {
padding: 0.833em 0 0.833em 1.25em; /* 10/12 15/12 */
border-left: 1px solid white;
border-bottom: 1px solid #f8f9fa;
}
/* Alternate table row */
table tbody tr:nth-child(odd) { background-color: #f8f9fa; }
/* Push the first cell to the right so it doesn't stick to the table border */
table td:first-child, table th:first-child {
width: 4em /* 48/12 */;
text-align: center;
padding: 0;
border: none;
border-bottom: 1px solid #f8f9fa;
}
table td:last-child, table th:last-child {
width: 7em; /* 84/12 */
text-align: center;
padding: 0;
}
table td.table-footer {
text-align: left;
vertical-align: middle;
padding-top: 1.25em /* 15/12 */;
border: none;
}
a.table-actions-button {
width: 1.25em;
height: 1.25em;
display: inline-block;
background-position: center center;
}
/* ---------- LISTS ---------- */
ol li, .regular-ul li { margin-left: 1.25em; /* 20/16 */ }
ol, .regular-ul, .custom-ul { margin-bottom: 1.25em; /* 20/16 */ }
.custom-ul { list-style-type: none; }
.custom-ul li {
background: transparent url('menu-dark-indicator.png') no-repeat left center;
padding-left: 1.25em /* 10/12 */;
}
/* ---------- CONTENT ---------- */
div#content {
background: #f8f9fa url('artwork-pattern.png') repeat-x left bottom;
border: 1px solid #eeefef;
padding: 1.875em 0; /* 30/16 */
}
form#login-form {
width: 18.75em; /* 300/16 */
margin: 0 auto;
}
div.side-menu {
background: #3f4551;
border: 1px solid #eeefef;
width: 15%;
margin-bottom: 1em; /* 16/16 */
}
div.side-menu h3 {
text-transform: uppercase;
font-weight: bold;
margin: 1.25em; /* 15/12 */
color: white;
}
div.side-menu ul { list-style-type: none; }
div.side-menu ul li a {
padding: 0.833em 1.25em; /* 10/12 15/12 */
border-top: 1px solid #f8f9fa;
display: block;
background: white url('menu-dark-indicator.png') no-repeat right center;
}
div.side-menu ul li a:hover {
background-color: #f8f9fa;
}
div.side-content { width: 83%; /* 100% - 15% for the side menu - 2% for the left margin */ }
div.content-module {
background: white;
margin-bottom: 1em; /* 16/16 */
border: 1px solid #eeefef;
}
div.content-module-heading {
background: #3f4551;
cursor: pointer;
}
div.content-module-heading h3 {
text-transform: uppercase;
color: white;
font-weight: bold;
margin: 1.25em; /* 15/12 */
}
div.content-module-heading span {
color: #969dac;
text-transform: uppercase;
margin: 1.5em; /* 15/10 */
}
div.content-module-main { padding: 1em; /* 16/16 */ }
/* ---------- FOOTER ---------- */
div#footer {
text-align: center;
padding: 1.875em 0; /* 30/16 */
}
application.html.erb：
<!DOCTYPE html>
<html lang="en">
<head>
<!-- Stylesheets -->
<link href='http://fonts.googleapis.com/css?family=Droid+Sans:400,700' rel='stylesheet'>
<link rel="stylesheet" href="/assets/application.css">
<!-- Optimize for mobile devices -->
<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
<!-- jQuery & JS files -->
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>
<script src="/assets/script.js"></script>
</head>
<body>
<!-- TOP BAR - Only if user has authenticated -->
<% if current_user %>
<div id="top-bar">
<div class="page-full-width cf">
<ul id="nav" class="fl">
<li class="v-sep"><a href="#" class="round button dark menu-user image-left">Logged in as <strong><%= current_user.name %></strong></a>
</li>
<li><%= link_to "Sign Out", signed_out_path, :class => "round button dark menu-logoff image-left" %></li>
</ul> <!-- end nav -->
<form action="#" method="POST" id="search-form" class="fr">
<fieldset>
<input type="text" id="search-keyword" class="round button dark ic-search image-right" placeholder="Search..." />
<input type="hidden" value="SUBMIT" />
</fieldset>
</form>
</div> <!-- end full-width -->
</div> <!-- end top-bar -->
<!-- HEADER -->
<div id="header-with-tabs">
<div class="page-full-width cf">
<ul id="tabs" class="fl">
<li><a href="dashboard.html" class="dashboard-tab">Dashboard</a></li>
<li><a href="../er_queues" >Full width page</a></li>
<li><a href="page-other.html" class="active-tab">Other page elements</a></li>
</ul> <!-- end tabs -->
</div> <!-- end full-width -->
</div> <!-- end header -->
<% end %>
<%= yield %>
</body>
我正在使用rails，而我只使用上面的css。 现在，我将所有选项卡代码放在application.html.erb上，由于某种原因，单击的选项卡未突出显示，并且初始活动选项卡未更改（我正在查看页面的来源，我看到了class =“active-tab”仍然在旧选项卡上，虽然我在另一页上。 任何人都可以看到原因吗？
谢谢！
答案 0 :(得分：0)
您需要在其他页面上设置class =“active-tab”属性。 因此，在您当前的页面中，您可以使用page-other.html：
<li><a href="dashboard.html" class="dashboard-tab">Dashboard</a></li>
<li><a href="../er_queues" >Full width page</a></li>
<li><a href="page-other.html" class="active-tab">Other page elements</a></li>
所以在er_queues页面中：
<li><a href="dashboard.html" class="dashboard-tab">Dashboard</a></li>
<li><a href="../er_queues" class="active-tab">Full width page</a></li>
<li><a href="page-other.html">Other page elements</a></li>
在dashboard.html页面中：
<li><a href="dashboard.html" class="dashboard-tab" class="active-tab">Dashboard</a></li>
<li><a href="../er_queues" >Full width page</a></li>
<li><a href="page-other.html">Other page elements</a></li>
您可以注意到相应的样式（class =“active-tab”）是为它们各自页面中对应的页面设置的。
希望这能解决你的问题。