CSS过渡 - 幻灯片菜单第一，褪色的文字后

所以，我试图让一个复选框，选中时，菜单将淡入和动画完成后，该文本开始淡入的问题是，当。我试着CSS文本类，它只是不会给“选中”属性附加伤害作出回应。CSS过渡 - 幻灯片菜单第一，褪色的文字后

我想点击该按钮，

/* MENU */ 
 
.nav-a { 
 
    display: block; 
 
    text-align: center; 
 
    text-decoration: none; 
 
    opacity: 0; 
 
    transition: opacity 0.4s 1s; 
 
} 
 

 
input[type=checkbox]:checked ~ .nav-a { 
 
    opacity: 1; 
 
} 
 

 
#nav-li { 
 
    float: right; 
 
    display: inline-block; 
 
    height: 50px; 
 
    line-height: 50px; 
 
    width: 100px; 
 
} 
 

 
#nav-ul { 
 
    list-style-type: none; 
 
    margin: 0; 
 
    padding: 0; 
 
} 
 

 
#nav { 
 
    background-color: #707068; 
 
    position: absolute; 
 
    top: 0; 
 
    width: 250px; 
 
    height: 50px; 
 
    z-index: -1; 
 
    opacity: 0; 
 
    transition: opacity 1s, transform 1s; 
 
} 
 

 
input[type=checkbox]:checked ~ #nav { 
 
    opacity: 1; 
 
} 
 

 
/* BOTAO MENU */ 
 

 
input[type=checkbox] { 
 
    position: absolute; 
 
    opacity: 0; 
 
} 
 

 
label { 
 
    position: absolute; 
 
    z-index: 1; 
 
    font-family:monospace; 
 
    font-size: 60px; 
 
    line-height: 38px; 
 
    height: 30px; 
 
    width: 30px; 
 
    color: #707068; 
 
    cursor: pointer; 
 
    left: 10px; 
 
    
 
} 
 

 
input[type=checkbox]:checked ~ label { 
 
    color: #9a9a8d; 
 
}

<div id="wrapper-menu"> 
 
    <input id="menu" type="checkbox"><label for="menu">&equiv;</label> 
 
    <nav id="nav"> 
 
     <ul id="nav-ul"> 
 
      <li id="nav-li"><a class="nav-a" href="">projetos</a></li> 
 
      <li id="nav-li"><a class="nav-a" href="">perfil</a></li> 
 
     </ul> 
 
    </nav> 
 
</div>

来源

2015-10-15 João Lucas Duarte

什么并不完全工作？ – cesare

因为你使用一般的兄弟姐妹组合子（〜）你不能直接针对.nav-a。你需要针对它的父项的复选框的兄弟，像#nav。见下面的演示。

/* MENU */ 
 
.nav-a { 
 
    display: block; 
 
    text-align: center; 
 
    text-decoration: none; 
 
    opacity: 0; 
 
    transition: opacity 0.4s 1s; 
 
} 
 

 
input[type=checkbox]:checked ~ #nav .nav-a { 
 
    opacity: 1; 
 
} 
 

 
#nav-li { 
 
    float: right; 
 
    display: inline-block; 
 
    height: 50px; 
 
    line-height: 50px; 
 
    width: 100px; 
 
} 
 

 
#nav-ul { 
 
    list-style-type: none; 
 
    margin: 0; 
 
    padding: 0; 
 
} 
 

 
#nav { 
 
    background-color: #707068; 
 
    position: absolute; 
 
    top: 0; 
 
    width: 250px; 
 
    height: 50px; 
 
    z-index: -1; 
 
    opacity: 0; 
 
    transition: opacity 1s, transform 1s; 
 
} 
 

 
input[type=checkbox]:checked ~ #nav { 
 
    opacity: 1; 
 
} 
 

 
/* BOTAO MENU */ 
 

 
input[type=checkbox] { 
 
    position: absolute; 
 
    opacity: 0; 
 
} 
 

 
label { 
 
    position: absolute; 
 
    z-index: 1; 
 
    font-family:monospace; 
 
    font-size: 60px; 
 
    line-height: 38px; 
 
    height: 30px; 
 
    width: 30px; 
 
    color: #707068; 
 
    cursor: pointer; 
 
    left: 10px; 
 
    
 
} 
 

 
input[type=checkbox]:checked ~ label { 
 
    color: #9a9a8d; 
 
}

<div id="wrapper-menu"> 
 
    <input id="menu" type="checkbox"><label for="menu">&equiv;</label> 
 
    <nav id="nav"> 
 
     <ul id="nav-ul"> 
 
      <li id="nav-li"><a class="nav-a" href="">projetos</a></li> 
 
      <li id="nav-li"><a class="nav-a" href="">perfil</a></li> 
 
     </ul> 
 
    </nav> 
 
</div>

来源

2015-10-15 21:55:41

CSS过渡 - 幻灯片菜单第一，褪色的文字后

回答

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