我正在做一个"汉堡"菜单,响应式样式,菜单将覆盖查看者所在的页面。
我找到了所有HTML / CSS,但我想添加淡入和淡出效果。
淡入与jquery代码一起使用,但菜单并没有淡出。已经尝试过一些关于SO的想法,但都没有。
有任何帮助吗? 小提琴:https://jsfiddle.net/f19kz640/
抱歉不好......
HTML
<header>
<div id="topbar"> <!-- top bar -->
<div id="nav-icon">
<span></span>
<span></span>
<span></span>
<span></span>
</div>
<div id="menu">
<ul>
<li><a href="#">Link1</a></li>
<li><a href="#">Link2</a></li>
<li><a href="#">Link3</a></li>
<li><a href="#">Link4</a></li>
<li><a href="#">Link5</a></li>
</ul>
</div>
</div>
</header>
CSS
body{
background-color: #000;
}
#menu{
z-index: 5;
width: 100%;
height: 100%;
background-color: rgba(0,0,0, 0.95);
position: fixed;
font-size: 1.5em;
text-align: center;
right: 0px;
top: 0px;
opacity: 0;
display: table;
}
.hidden{
display: none;
visibility: none;
}
#menu ul{
margin: 0;
padding: 0;
z-index: 10;
width: 100%;
height: 100%;
display: table-cell;
vertical-align: middle;
}
#menu ul li{
cursor: pointer;
text-decoration: none;
}
#menu ul li:hover{
background-color: #006973;
-webkit-transition: .15s ease-in-out;
-moz-transition: .15s ease-in-out;
-o-transition: .15s ease-in-out;
transition: .15s ease-in-out;
}
#menu ul a{
letter-spacing: 5px;
text-align: center;
margin-left: auto;
margin-right: auto;
color: #fff;
list-style: none;
text-transform: uppercase;
padding: 0px;
line-height: 75px;
padding: 10px 700px;
text-decoration: none;
}
#menu ul a:hover{
text-decoration: none;
color: #fff ;
}
#nav-icon {
z-index: 20;
width: 50px;
height: 35px;
position: relative;
margin: 35px 30px;
-webkit-transform: rotate(0deg);
-moz-transform: rotate(0deg);
-o-transform: rotate(0deg);
transform: rotate(0deg);
-webkit-transition: .5s ease-in-out;
-moz-transition: .5s ease-in-out;
-o-transition: .5s ease-in-out;
transition: .5s ease-in-out;
cursor: pointer;
}
#nav-icon span {
display: block;
position: absolute;
height: 5px;
width: 40px;
background: #bada33;
opacity: 1;
left: 0;
-webkit-transform: rotate(0deg);
-moz-transform: rotate(0deg);
-o-transform: rotate(0deg);
transform: rotate(0deg);
-webkit-transition: .25s ease-in-out;
-moz-transition: .25s ease-in-out;
-o-transition: .25s ease-in-out;
transition: .25s ease-in-out;
}
/* Icon 3 */
#nav-icon span:nth-child(1) {
top: 0px;
}
#nav-icon span:nth-child(2),#nav-icon span:nth-child(3) {
top: 12px;
}
#nav-icon span:nth-child(4) {
top: 24px;
}
#nav-icon.open span:nth-child(1) {
top: 8px;
width: 0%;
left: 50%;
}
#nav-icon.open span:nth-child(2) {
-webkit-transform: rotate(45deg);
-moz-transform: rotate(45deg);
-o-transform: rotate(45deg);
transform: rotate(45deg);
}
#nav-icon.open span:nth-child(3) {
-webkit-transform: rotate(-45deg);
-moz-transform: rotate(-45deg);
-o-transform: rotate(-45deg);
transform: rotate(-45deg);
}
#nav-icon.open span:nth-child(4) {
top: 8px;
width: 0%;
left: 50%;
}
使用Javascript / JQuery的
$(document).ready(function(){
$('#nav-icon').click(function(){
$(this).toggleClass('open');
if($('#menu').css('opacity') == '0'){
$('#menu').css('opacity','1');
$('#menu').fadeIn(300).css('display','table');
}else{
$('#menu').css('opacity','0');
$('#menu').fadeOut(300).css('display','none');
}
});
});
答案 0 :(得分:1)
你可以轻松地简化事情:
$(document).ready(function(){
$('#nav-icon').click(function(){
$(this).toggleClass('open');
$('#menu').fadeToggle(300);
});
});
没有理由使用不透明度属性或显示属性,它只是jQuery fade()
函数的一部分,您只能切换它。