[英]Styling responsive fixed navigation on scroll
我正在為網站使用adtile的固定響應式導航( 此處為demo )。 它工作正常,除了一件事:我希望標題背景顏色首先是透明的,然后在您向下滾動到“關於”部分時淡入。 如果可能,當“關於”鏈接顏色更改時,標題背景應該具有100%的不透明度。 我真的對如何使這項工作迷失了,所以任何幫助將不勝感激!
我在這里做了一個jsfiddle,但是有很多Javascript,所以在這里查看GitHub上的倉庫可能更容易。
HTML:
<header>
<a href="#home" class="logo" data-scroll>Fixed Nav</a>
<nav class="nav-collapse">
<ul>
<li class="menu-item active"><a href="#home" data-scroll>Home</a></li>
<li class="menu-item"><a href="#about" data-scroll>About</a></li>
<li class="menu-item"><a href="#projects" data-scroll>Projects</a></li>
<li class="menu-item"><a href="#blog" data-scroll>Blog</a></li>
</ul>
</nav>
</header>
<section id="home">
<h1>Fixed Nav</h1>
<p>The code and examples are hosted on GitHub and can be <a href="https://github.com/adtile/fixed-nav">found from here</a>. Read more about the approach from <a href="http://blog.adtile.me/2014/03/03/responsive-fixed-one-page-navigation/">our blog</a>.</p>
</section>
<section id="about">
<h1>About</h1>
</section>
<section id="projects">
<h1>Projects</h1>
</section>
<section id="blog">
<h1>Blog</h1>
</section>
CSS:
body, div,
h1, h2, h3, h4, h5, h6,
p, blockquote, pre, dl, dt, dd, ol, ul, li, hr,
fieldset, form, label, legend, th, td,
article, aside, figure, footer, header, hgroup, menu, nav, section,
summary, hgroup {
margin: 0;
padding: 0;
border: 0;
}
a:active,
a:hover {
outline: 0;
}
@-webkit-viewport { width: device-width; }
@-moz-viewport { width: device-width; }
@-ms-viewport { width: device-width; }
@-o-viewport { width: device-width; }
@viewport { width: device-width; }
/* ------------------------------------------
RESPONSIVE NAV STYLES
--------------------------------------------- */
.nav-collapse ul {
margin: 0;
padding: 0;
width: 100%;
display: block;
list-style: none;
}
.nav-collapse li {
width: 100%;
display: block;
}
.js .nav-collapse {
clip: rect(0 0 0 0);
max-height: 0;
position: absolute;
display: block;
overflow: hidden;
zoom: 1;
}
.nav-collapse.opened {
max-height: 9999px;
}
.disable-pointer-events {
pointer-events: none !important;
}
.nav-toggle {
-webkit-tap-highlight-color: rgba(0,0,0,0);
-webkit-touch-callout: none;
-webkit-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
-o-user-select: none;
user-select: none;
}
@media screen and (min-width: 40em) {
.js .nav-collapse {
position: relative;
}
.js .nav-collapse.closed {
max-height: none;
}
.nav-toggle {
display: none;
}
}
/* ------------------------------------------
DEMO STYLES
--------------------------------------------- */
body {
-webkit-text-size-adjust: 100%;
-ms-text-size-adjust: 100%;
text-size-adjust: 100%;
color: #37302a;
background: #fff;
font: normal 100%/1.4 sans-serif;
}
section {
border-bottom: 1px solid #999;
text-align: center;
padding: 100px 0 0;
height: 800px;
width: 100%;
}
h1 {
margin-bottom: .5em;
}
p {
width: 90%;
margin: 0 auto;
}
/* ------------------------------------------
FIXED HEADER
--------------------------------------------- */
header {
background: #f4421a;
position: fixed;
z-index: 3;
width: 100%;
left: 0;
top: 0;
}
.logo {
-webkit-tap-highlight-color: rgba(0,0,0,0);
text-decoration: none;
font-weight: bold;
line-height: 55px;
padding: 0 20px;
color: #fff;
float: left;
}
/* ------------------------------------------
MASK
--------------------------------------------- */
.mask {
-webkit-transition: opacity 300ms;
-moz-transition: opacity 300ms;
transition: opacity 300ms;
background: rgba(0,0,0, .5);
visibility: hidden;
position: fixed;
opacity: 0;
z-index: 2;
bottom: 0;
right: 0;
left: 0;
top: 0;
}
.android .mask {
-webkit-transition: none;
transition: none;
}
.js-nav-active .mask {
visibility: visible;
opacity: 1;
}
@media screen and (min-width: 40em) {
.mask {
display: none !important;
opacity: 0 !important;
}
}
/* ------------------------------------------
NAVIGATION STYLES
--------------------------------------------- */
.fixed {
position: fixed;
width: 100%;
left: 0;
top: 0;
}
.nav-collapse,
.nav-collapse * {
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
}
.nav-collapse,
.nav-collapse ul {
list-style: none;
width: 100%;
float: left;
}
@media screen and (min-width: 40em) {
.nav-collapse {
float: right;
width: auto;
}
}
.nav-collapse li {
float: left;
width: 100%;
}
@media screen and (min-width: 40em) {
.nav-collapse li {
width: auto;
}
}
.nav-collapse a {
-webkit-tap-highlight-color: rgba(0,0,0,0);
border-top: 1px solid white;
text-decoration: none;
background: #f4421a;
padding: 0.7em 1em;
color: #fff;
width: 100%;
float: left;
}
.nav-collapse a:active,
.nav-collapse .active a {
background: #b73214;
}
@media screen and (min-width: 40em) {
.nav-collapse a {
border-left: 1px solid white;
padding: 1.02em 2em;
text-align: center;
border-top: 0;
float: left;
margin: 0;
}
}
.nav-collapse ul ul a {
background: #ca3716;
padding-left: 2em;
}
@media screen and (min-width: 40em) {
.nav-collapse ul ul a {
display: none;
}
}
/* ------------------------------------------
NAV TOGGLE STYLES
--------------------------------------------- */
@font-face {
font-family: "responsivenav";
src:url("../icons/responsivenav.eot");
src:url("../icons/responsivenav.eot?#iefix") format("embedded-opentype"),
url("../icons/responsivenav.ttf") format("truetype"),
url("../icons/responsivenav.woff") format("woff"),
url("../icons/responsivenav.svg#responsivenav") format("svg");
font-weight: normal;
font-style: normal;
}
.nav-toggle {
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
text-decoration: none;
text-indent: -300px;
position: relative;
overflow: hidden;
width: 60px;
height: 55px;
float: right;
}
.nav-toggle:before {
color: #fff; /* Edit this to change the icon color */
font: normal 28px/55px "responsivenav"; /* Edit font-size (28px) to change the icon size */
text-transform: none;
text-align: center;
position: absolute;
content: "\2261"; /* Hamburger icon */
text-indent: 0;
speak: none;
width: 100%;
left: 0;
top: 0;
}
.nav-toggle.active:before {
font-size: 24px;
content: "\78"; /* Close icon */
}
JAVASCRIPT:
有太多的代碼行無法適合Stackoverflow。 請在此處查看GitHub上的Javascript文件。
您絕對可以使用Skrollr實現此目的。 但是,我希望其他人可以找到不依賴於此的解決方案。
https://github.com/Prinzhorn/skrollr
您基本上可以緩解設置的滾動高度/位置上的不透明度/顏色變化。 因此它將完美地滿足您的需求。 演示https://prinzhorn.github.io/skrollr/有一個很好的例子,介紹了頁面的一半。
嘗試使標題背景最初透明,並在滾動上方的標題上添加類。
$(window).scroll(function() {
var scroll = $(window).scrollTop();
if (scroll >= 800) {
$("header").addClass("darkHeader");
} else {
$("header").removeClass("darkHeader");
}
});
根據您的要求設置新類的樣式。 希望這是您想要的。
您可以通過JQuery做到這一點,只需先將任何類添加到home鏈接即可,即'home' <li class="menu-item home active"><a href="#home" data-scroll>Home</a></li>
然后滾動檢查是否處於活動狀態,將類添加到標題
例
$(window).scroll(function(){
if ($(".menu-item.home").hasClass("active")) {
$("header").addClass("default-header")
}else {
$("header").removeClass("default-header")
}
})
比做
.default-header{
// your css code here for default/home section header
}
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