Team:BIT-China/css/template/navStyle

/* --------------------------------

Primary style

---

*/

• , *::after, *::before {

 box-sizing: border-box;

}

html {

 font-size: 62.5%;

}

body {

 font-size: 1.6rem;
 font-family: "Hind", sans-serif;
 color: #25283D;
 background-color: #ECF0F1;
 -webkit-font-smoothing: antialiased;
 -moz-osx-font-smoothing: grayscale;

}

a {

 color: #8F3985;
 text-decoration: none;

}

/* --------------------------------

1. Auto-Hiding Navigation - Simple

---

*/

.cd-auto-hide-header {

 position: fixed;
 z-index: 2;
 top: 0;
 left: 0;
 width: 100%;
 height: 60px;
 background-color: #ffffff;
 /* Force Hardware Acceleration */
 -webkit-transform: translateZ(0);
         transform: translateZ(0);
 will-change: transform;
 -webkit-transition: -webkit-transform .5s;
 transition: -webkit-transform .5s;
 transition: transform .5s;
 transition: transform .5s, -webkit-transform .5s;

} .cd-auto-hide-header::after {

 clear: both;
 content: "";
 display: block;

} .cd-auto-hide-header.is-hidden {

 -webkit-transform: translateY(-100%);
     -ms-transform: translateY(-100%);
         transform: translateY(-100%);

} @media only screen and (min-width: 1024px) {

 .cd-auto-hide-header {
   height: 80px;
 }

}

.cd-auto-hide-header .logo, .cd-auto-hide-header .nav-trigger {

 position: absolute;
 top: 50%;
 bottom: auto;
 -webkit-transform: translateY(-50%);
     -ms-transform: translateY(-50%);
         transform: translateY(-50%);

}

.cd-auto-hide-header .logo {

 left: 5%;

} .cd-auto-hide-header .logo a, .cd-auto-hide-header .logo img {

 display: block;

}

.cd-auto-hide-header .nav-trigger {

 /* vertically align its content */
 display: table;
 height: 100%;
 padding: 0 1em;
 font-size: 1.2rem;
 text-transform: uppercase;
 color: #25283D;
 font-weight: bold;
 right: 0;
 border-left: 1px solid #f2f2f2;

} .cd-auto-hide-header .nav-trigger span {

 /* vertically align inside parent element */
 display: table-cell;
 vertical-align: middle;

} .cd-auto-hide-header .nav-trigger em, .cd-auto-hide-header .nav-trigger em::after, .cd-auto-hide-header .nav-trigger em::before {

 /* this is the menu icon */
 display: block;
 position: relative;
 height: 2px;
 width: 22px;
 background-color: #25283D;
 -webkit-backface-visibility: hidden;
         backface-visibility: hidden;

} .cd-auto-hide-header .nav-trigger em {

 /* this is the menu central line */
 margin: 6px auto 14px;
 -webkit-transition: background-color .2s;
 transition: background-color .2s;

} .cd-auto-hide-header .nav-trigger em::before, .cd-auto-hide-header .nav-trigger em::after {

 position: absolute;
 content: ;
 left: 0;
 -webkit-transition: -webkit-transform .2s;
 transition: -webkit-transform .2s;
 transition: transform .2s;
 transition: transform .2s, -webkit-transform .2s;

} .cd-auto-hide-header .nav-trigger em::before {

 /* this is the menu icon top line */
 -webkit-transform: translateY(-6px);
     -ms-transform: translateY(-6px);
         transform: translateY(-6px);

} .cd-auto-hide-header .nav-trigger em::after {

 /* this is the menu icon bottom line */
 -webkit-transform: translateY(6px);
     -ms-transform: translateY(6px);
         transform: translateY(6px);

} @media only screen and (min-width: 1024px) {

 .cd-auto-hide-header .nav-trigger {
   display: none;
 }

}

.cd-auto-hide-header.nav-open .nav-trigger em {

 /* transform menu icon into a 'X' icon */
 background-color: rgba(255, 255, 255, 0);

} .cd-auto-hide-header.nav-open .nav-trigger em::before {

 /* rotate top line */
 -webkit-transform: rotate(-45deg);
     -ms-transform: rotate(-45deg);
         transform: rotate(-45deg);

} .cd-auto-hide-header.nav-open .nav-trigger em::after {

 /* rotate bottom line */
 -webkit-transform: rotate(45deg);
     -ms-transform: rotate(45deg);
         transform: rotate(45deg);

}

.cd-primary-nav {

 display: inline-block;
 float: right;
 height: 100%;
 padding-right: 5%;

} .cd-primary-nav > ul {

 position: absolute;
 z-index: 2;
 top: 60px;
 left: 0;
 width: 100%;
 background-color: #ffffff;
 display: none;
 box-shadow: 0 14px 20px rgba(0, 0, 0, 0.2);

} .cd-primary-nav > ul a {

 /* target primary-nav links */
 display: block;
 height: 50px;
 line-height: 50px;
 padding-left: 5%;

 /*文字颜色*/
 color: #25283D;
 /*color: #00001A;*/
 font-size: 1.8rem;
 border-top: 1px solid #f2f2f2;

} .cd-primary-nav > ul a:hover, .cd-primary-nav > ul a.active {

 color: #8F3985;

} @media only screen and (min-width: 1024px) {

 .cd-primary-nav {
   /* vertically align its content */
   display: table;
 }
 .cd-primary-nav > ul {
   /* vertically align inside parent element */
   display: table-cell;
   vertical-align: middle;
   /* reset mobile style */
   position: relative;
   width: auto;
   top: 0;
   padding: 0;
   background-color: transparent;
   box-shadow: none;
 }
 .cd-primary-nav > ul::after {
   clear: both;
   content: "";
   display: block;
 }
 .cd-primary-nav > ul li {
   display: inline-block;
   float: left;
   margin-right: 1.5em;
 }
 .cd-primary-nav > ul li:last-of-type {
   margin-right: 0;
 }
 .cd-primary-nav > ul a {
   /* reset mobile style */
   height: auto;
   line-height: normal;
   padding: 0;
   border: none;
 }

}

.nav-open .cd-primary-nav ul, .cd-primary-nav ul:target {

 /* 
 	show primary nav - mobile only 
 	:target is used to show navigation on no-js devices
 */
 display: block;

} @media only screen and (min-width: 1024px) {

 .nav-open .cd-primary-nav ul,
 .cd-primary-nav ul:target {
   display: table-cell;
 }

}

/* --------------------------------

2. Auto-Hiding Navigation - with Sub Nav

---

*/

.cd-secondary-nav {

 position: relative;
 z-index: 1;
 clear: both;
 width: 100%;
 height: 50px;
 background-color: #141d3d;
 /*background-color: #25283D;*/
 /*强制开启硬件加速*/
 /* Force Hardware Acceleration */
 -webkit-transform: translateZ(0);
         transform: translateZ(0);
 will-change: transform;
 -webkit-transition: -webkit-transform .5s;
 transition: -webkit-transform .5s;
 transition: transform .5s;
 transition: transform .5s, -webkit-transform .5s;

}

.cd-secondary-nav::after {

 /* gradient on the right - to indicate it's possible to scroll */
 content: ;
 position: absolute;
 z-index: 1;
 top: 0;
 right: 0;
 height: 100%;
 width: 35px;
 background: transparent;
 background: -webkit-linear-gradient(right, #25283D, rgba(37, 40, 61, 0));
 background: linear-gradient(to left, #25283D, rgba(37, 40, 61, 0));
 pointer-events: none;
 -webkit-transition: opacity .2s;
 transition: opacity .2s;

} .cd-secondary-nav.nav-end::after {

 opacity: 0;

} .cd-secondary-nav ul, .cd-secondary-nav li, .cd-secondary-nav a {

 height: 100%;

} .cd-secondary-nav ul {

 /* enables a flex context for all its direct children */
 display: -webkit-box;
 display: -webkit-flex;
 display: -ms-flexbox;
 display: flex;
 padding: 0 5%;
 overflow-x: auto;
 -webkit-overflow-scrolling: touch;

} .cd-secondary-nav ul::after {

 clear: both;
 content: "";
 display: block;

} .cd-secondary-nav li {

 display: inline-block;
 float: left;
 /* do not shrink - elements float on the right of the element */
 -webkit-flex-shrink: 0;
     -ms-flex-negative: 0;
         flex-shrink: 0;

} .cd-secondary-nav li:last-of-type {

 padding-right: 20px;

}

/*二级导航文字颜色*/ .cd-secondary-nav a {

 display: block;
 /*color: #ffffff;*/
 color:#d8d1b7;
 opacity: .8;
 font-weight: bold;
 line-height: 50px;
 padding: 0 1em;

} .cd-secondary-nav a:hover, .cd-secondary-nav a.active {

 opacity: 1;

} @media only screen and (min-width: 1024px) {

 .cd-secondary-nav {
   height: 70px;
   overflow: visible;
 }
 .cd-secondary-nav ul {
   /* reset mobile style */
   display: block;
   text-align: center;
 }
 .cd-secondary-nav li {
   /* reset mobile style */
   float: none;
   -webkit-flex-shrink: 1;
       -ms-flex-negative: 1;
           flex-shrink: 1;
 }
 .cd-secondary-nav a {
   line-height: 70px;
 }
 .cd-secondary-nav a.active {
   box-shadow: inset 0 -3px #8F3985;
 }

}

/* --------------------------------

3. Auto-Hiding Navigation - with Sub Nav + Hero Image

---

*/

.cd-secondary-nav.fixed {

 position: fixed;
 top: 60px;

} .cd-secondary-nav.slide-up {

 -webkit-transform: translateY(-60px);
     -ms-transform: translateY(-60px);
         transform: translateY(-60px);

} @media only screen and (min-width: 1024px) {

 .cd-secondary-nav.fixed {
   top: 80px;
   /* fixes a bug where nav and subnab move with a slight delay */
   box-shadow: 0 -6px 0 #25283D;
 }
 .cd-secondary-nav.slide-up {
   -webkit-transform: translateY(-80px);
       -ms-transform: translateY(-80px);
           transform: translateY(-80px);
 }

}

/* --------------------------------

Main content

---

*/

.cd-main-content {

 padding: 60px 5% 2em;
 overflow: hidden;

} .cd-main-content.sub-nav {

 /* to be used if there is sub nav */
 padding-top: 110px;

} .cd-main-content.sub-nav-hero {

 /* to be used if there is hero image + subnav */
 padding-top: 0;

} .cd-main-content.sub-nav-hero.secondary-nav-fixed {

 margin-top: 50px;

} .cd-main-content p {

 max-width: 1024px;
 line-height: 1.6;
 margin: 2em auto;
 font-family: "David Libre", serif;
 color: #a5a8a9;

} @media only screen and (min-width: 1024px) {

 .cd-main-content {
   padding-top: 80px;
 }
 .cd-main-content.sub-nav {
   padding-top: 150px;
 }
 .cd-main-content.sub-nav-hero.secondary-nav-fixed {
   margin-top: 70px;
 }
 .cd-main-content p {
   font-size: 2.4rem;
 }

}

/* adjust the positioning of in-page links http://nicolasgallagher.com/jump-links-and-viewport-positioning/

• /

.cd-main-content.sub-nav :target::before, .cd-main-content.sub-nav-hero :target::before {

 display: block;
 content: "";
 margin-top: -50px;
 height: 50px;
 visibility: hidden;

} @media only screen and (min-width: 1024px) {

 .cd-main-content.sub-nav :target::before,
 .cd-main-content.sub-nav-hero :target::before {
   margin-top: -70px;
   height: 70px;
 }

}

/* --------------------------------

Intro Section

---

*/

.cd-hero {

 /* vertically align its content */
 display: table;
 width: 100%;
 margin-top: 60px;
 height: 300px;
 /*background: url(../img/cd-hero-background.jpg) no-repeat center center;*/
 background: url(../img/wiki1.jpg) no-repeat center center;
 background-size: cover;

} .cd-hero .cd-hero-content {

 /* vertically align inside parent element */
 display: table-cell;
 vertical-align: middle;
 text-align: center;

} @media only screen and (min-width: 768px) {

 .cd-hero {
   height: 400px;
 }

} @media only screen and (min-width: 1024px) {

 .cd-hero {
   height: 600px;
   margin-top: 80px;
 }

}