Navegación de superposición de pantalla completa con Velocity. js y CSS3

Vista prévia

Descripción

Una navegación en el sitio de pantalla completa con un botón de alternancia de hamburguesa y un efecto de transición fresco implementado con jQuery, Velocity. js, modelo de Flexbox CSS3 y varias propiedades de animación.

Funcionamiento

Cree la navegación de superposición de pantalla completa con la siguiente estructura HTML.

<div class="overlay-navigation">

<nav role="navigation">


<ul>



<li><a href="#" data-content="The beginning">Home</a></li>



<li><a href="#" data-content="Curious?">About</a></li>



<li><a href="#" data-content="I got game">Skills</a></li>



<li><a href="#" data-content="Only the finest">Works</a></li>



<li><a href="#" data-content="Don't hesitate">Contact</a></li>


</ul>

</nav>
</div>

El CSS para la navegación a pantalla completa.

.overlay-navigation {

position: fixed;

z-index: 99;

top: 0;

left: 0;

width: 100%;

height: 100%;

background-color: hsla(0, 0%, 100%, 0.2);

display: none;

opacity: 0;
}

nav, nav ul {

width: 100%;

height: 100%;

margin: 0;

padding: 0;
}

nav ul {

display: -webkit-box;

display: -webkit-flex;

display: -ms-flexbox;

display: flex;

list-style: none;
}

nav ul li {

-webkit-flex-basis: 20%;

-ms-flex-preferred-size: 20%;

flex-basis: 20%;

-webkit-box-pack: center;

-webkit-justify-content: center;

-ms-flex-pack: center;

justify-content: center;

-webkit-box-align: center;

-webkit-align-items: center;

-ms-flex-align: center;

align-items: center;

height: 100%;

overflow: hidden;

opacity: 0;

display: none;
}

nav li a {

position: relative;

top: 46%;

color: #fff;

text-transform: uppercase;

font-family: 'Work sans', sans-serif;

font-weight: 300;

letter-spacing: 4px;

text-decoration: none;

display: block;

text-align: center;

font-size: 0.9rem;

opacity: 0;
}

nav li a:before {

content: '';

width: 70px;

height: 2px;

background-color: #fff;

position: absolute;

top: 50%;

left: 0;

z-index: 100;

-webkit-transform: translateX(-100%);

-ms-transform: translateX(-100%);

transform: translateX(-100%);

opacity: 0;

-webkit-transition: all .2s linear;

transition: all .2s linear;
}

nav li a:after {

content: attr(data-content);

font-size: 0.7rem;

-webkit-transition: all .2s linear;

transition: all .2s linear;

opacity: 0;

position: absolute;

z-index: 100;

color: #fff;

display: block;

margin-right: auto;

margin-left: auto;

left: 0;

right: 0;

bottom: -50px;

text-transform: none;

font-family: 'Open sans', serif;

font-weight: 300;

font-style: italic;

letter-spacing: 0;
}

nav li a:hover:before {

-webkit-transform: translateX(0);

-ms-transform: translateX(0);

transform: translateX(0);

opacity: 1;
}

nav li a:hover:after {

-webkit-transform: translateY(15px);

-ms-transform: translateY(15px);

transform: translateY(15px);

opacity: 1;
}

nav li:nth-of-type(1) { background-color: #29363B }

nav li:nth-of-type(2) { background-color: #EA495F }

nav li:nth-of-type(3) { background-color: #F4837D }

nav li:nth-of-type(4) { background-color: #FDCEA9 }

nav li:nth-of-type(5) { background-color: #99B998 }

Cree un botón de desencadenador que le permita alternar la navegación a pantalla completa.

<section class="home">

<div class="open-overlay">


<span class="bar-top"></span>


 <span class="bar-middle"></span>


 <span class="bar-bottom"></span>

 </div>
</section>

El CSS para el botón disparador.

.open-overlay {

position: absolute;

right: 5rem;

top: 3.2rem;

z-index: 100;

width: 34px;

display: block;

cursor: pointer;
}

.open-overlay span {

display: block;

height: 1px;

background-color: #fff;

cursor: pointer;

margin-top: 8px;
}

.animate-top-bar {

-webkit-animation: animate-top-bar .6s linear 1 both;

animation: animate-top-bar .6s linear 1 both
}

.animate-bottom-bar {

-webkit-animation: animate-bottom-bar .6s linear 1 both;

animation: animate-bottom-bar .6s linear 1 both
}

.animate-middle-bar {

-webkit-animation: animate-middle-bar .6s linear 1 both;

animation: animate-middle-bar .6s linear 1 both
}

.animate-out-top-bar {

-webkit-animation: animate-out-top-bar .6s linear 1 both;

animation: animate-out-top-bar .6s linear 1 both
}

.animate-out-bottom-bar {

-webkit-animation: animate-out-bottom-bar .6s linear 1 both;

animation: animate-out-bottom-bar .6s linear 1 both
}

.animate-out-middle-bar {

-webkit-animation: animate-out-middle-bar .6s linear 1 both;

animation: animate-out-middle-bar .6s linear 1 both
}

Los fotogramas clave de animación.

@keyframes
 animate-top-bar {
0% {
 background-color: #fff;
}
 50% {
 -webkit-transform: translateY(9px);
 transform: translateY(9px)
}
 80% {
 -webkit-transform: translateY(5px);
 transform: translateY(5px);
 background-color: #fff
}
 100% {
 -webkit-transform: translateY(0);
 transform: translateY(0);
 background-color: #29363B;
}
}

@keyframes
 animate-bottom-bar {
0% {
 background-color: #fff;
}
 50% {
 -webkit-transform: translateY(-9px);
 transform: translateY(-9px)
}
 80% {
 -webkit-transform: translateY(-5px);
 transform: translateY(-5px);
 background-color: #fff;
}
 100% {
 -webkit-transform: translateY(0);
 transform: translateY(0);
 background-color: #29363B;
}
}

@keyframes
 animate-middle-bar {
0% {
 background-color: #fff;
}
 80% {
 background-color: #fff;
}
 100% {
 background-color: #29363B;
}
}

@keyframes
 animate-out-top-bar {
0% {
 background-color: #29363B
}
 50% {
 -webkit-transform: translateY(9px);
 transform: translateY(9px)
}
 80% {
 -webkit-transform: translateY(5px);
 transform: translateY(5px);
 background-color: #29363B
}
 100% {
 -webkit-transform: translateY(0);
 transform: translateY(0);
 background-color: #FFF;
}
}

@keyframes
 animate-out-bottom-bar {
0% {
 background-color: #29363B
}
 50% {
 -webkit-transform: translateY(-9px);
 transform: translateY(-9px)
}
 80% {
 -webkit-transform: translateY(-5px);
 transform: translateY(-5px);
 background-color: #29363B;
}
 100% {
 -webkit-transform: translateY(0);
 transform: translateY(0);
 background-color: #FFF;
}
}

@keyframes
 animate-out-middle-bar {
0% {
 background-color: #29363B
}
 80% {
 background-color: #29363B;
}
 100% {
 background-color: #fff;
}
}

Coloque las bibliotecas de JavaScript de jQuery y Velocity. js en la parte inferior de la Página Web.

<script src="jquery.min.js"></script>
<script src="jquery.velocity.min.js"></script>
<script src="velocity.ui.js"></script>

El núcleo JavaScript para activar la navegación a pantalla completa.

$('.open-overlay').click(function() {
 $('.open-overlay').css('pointer-events', 'none');
 var overlay_navigation = $('.overlay-navigation'),

 top_bar = $('.bar-top'),

 middle_bar = $('.bar-middle'),

 bottom_bar = $('.bar-bottom');

 overlay_navigation.toggleClass('overlay-active');
 if (overlay_navigation.hasClass('overlay-active')) {


 top_bar.removeClass('animate-out-top-bar').addClass('animate-top-bar');

 middle_bar.removeClass('animate-out-middle-bar').addClass('animate-middle-bar');

 bottom_bar.removeClass('animate-out-bottom-bar').addClass('animate-bottom-bar');

 overlay_navigation.removeClass('overlay-slide-up').addClass('overlay-slide-down')

 overlay_navigation.velocity('transition.slideLeftIn', {


 duration: 300,


 delay: 0,


 begin: function() {



 $('nav ul li').velocity('transition.perspectiveLeftIn', {




 stagger: 150,




 delay: 0,




 complete: function() {





 $('nav ul li a').velocity({






 opacity: [1, 0],





 }, {






 delay: 10,






 duration: 140





 });





 $('.open-overlay').css('pointer-events', 'auto');




 }



 })


 }

 })

 } else {

 $('.open-overlay').css('pointer-events', 'none');

 top_bar.removeClass('animate-top-bar').addClass('animate-out-top-bar');

 middle_bar.removeClass('animate-middle-bar').addClass('animate-out-middle-bar');

 bottom_bar.removeClass('animate-bottom-bar').addClass('animate-out-bottom-bar');

 overlay_navigation.removeClass('overlay-slide-down').addClass('overlay-slide-up')

 $('nav ul li').velocity('transition.perspectiveRightOut', {


 stagger: 150,


 delay: 0,


 complete: function() {



 overlay_navigation.velocity('transition.fadeOut', {




 delay: 0,




 duration: 300,




 complete: function() {





 $('nav ul li a').velocity({






 opacity: [0, 1],





 }, {






 delay: 0,






 duration: 50





 });





 $('.open-overlay').css('pointer-events', 'auto');




 }



 });


 }

 })
 }
})