Css3トランジション拡張時に動作しない

Question

次の例で、ブートストラップNavbarを縮小しながらCss3トランジションを使用できますが、スクロールダウン（再拡張）時には、navbarの高さはトランジションを考慮していないので、min-height: 80px;からmin-height: 60px;

このデモを見て、私が間違っていることを教えてください。あなたのtransitionに欠けている変わる性質の

.navbar { 
 
    min-height: 80px; 
 
    transition: min-height 0.5s linear; 
 
} 
 
.navbar-brand { 
 
    padding: 0 15px; 
 
    height: 80px; 
 
    line-height: 80px; 
 
    transition: height 0.5s linear; 
 
    transition: line-height 0.5s linear; 
 
} 
 
.navbar-nav > li > a { 
 
    padding-top: 0px; 
 
    padding-bottom: 0px; 
 
    line-height: 80px; 
 
    transition: line-height .5s linear; 
 
} 
 
.affix { 
 
    width: 100%; 
 
    top: 0px; 
 
    min-height: 60px; 
 
    transition: min-height 0.5s linear; 
 
} 
 

 
.affix .navbar-brand { 
 
    padding: 0 15px; 
 
    height: 60px; 
 
    line-height: 60px; 
 

 
} 
 
.affix .navbar-nav > li > a { 
 
    padding-top: 0px; 
 
    padding-bottom: 0px; 
 
    line-height: 60px; 
 
    
 
} 
 
.container1 { 
 
    height: 2000px; 
 
}

<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" /> 
 
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script> 
 
<script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script> 
 
    <nav class="navbar navbar-inverse" data-spy="affix" data-offset-top="0"> 
 
    <div class="container"> 
 
    <!-- Brand and toggle get grouped for better mobile display --> 
 
    <div class="navbar-header"> 
 
     <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false"> 
 
     <span class="sr-only">Toggle navigation</span> 
 
     <span class="icon-bar"></span> 
 
     <span class="icon-bar"></span> 
 
     <span class="icon-bar"></span> 
 
     </button> 
 
     <a class="navbar-brand" href="#">Brand</a> 
 
    </div> 
 

 
    <!-- Collect the nav links, forms, and other content for toggling --> 
 
    <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1"> 
 
     <ul class="nav navbar-nav"> 
 
     <li class="active"><a href="#">Link <span class="sr-only">(current)</span></a></li> 
 
     <li><a href="#">Link</a></li> 
 
     <li class="dropdown"> 
 
      <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Dropdown <span class="caret"></span></a> 
 
      <ul class="dropdown-menu"> 
 
      <li><a href="#">Action</a></li> 
 
      <li><a href="#">Another action</a></li> 
 
      <li><a href="#">Something else here</a></li> 
 
      <li role="separator" class="divider"></li> 
 
      <li><a href="#">Separated link</a></li> 
 
      <li role="separator" class="divider"></li> 
 
      <li><a href="#">One more separated link</a></li> 
 
      </ul> 
 
     </li> 
 
     </ul> 
 
     
 
     <ul class="nav navbar-nav navbar-right"> 
 
     <li><a href="#">Link</a></li> 
 
     <li class="dropdown"> 
 
      <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Dropdown <span class="caret"></span></a> 
 
      <ul class="dropdown-menu"> 
 
      <li><a href="#">Action</a></li> 
 
      <li><a href="#">Another action</a></li> 
 
      <li><a href="#">Something else here</a></li> 
 
      <li role="separator" class="divider"></li> 
 
      <li><a href="#">Separated link</a></li> 
 
      </ul> 
 
     </li> 
 
     </ul> 
 
    </div><!-- /.navbar-collapse --> 
 
    </div><!-- /.container-fluid --> 
 
</nav> 
 

 
<div class="container1"></div>

Answer 1

つ（またはそれ以上）。あなたはこのように行う場合

transition: height 0.5s linear, line-height 0.5s linear; 

が、最後は最初

を上書き：以下のサンプルで

は、私がお勧めしても、あなたはこのように、代わりに各プロパティを書き、それがどのように見えるかを示すためにallにそれを変更しました

transition: height 0.5s linear; 
transition: line-height 0.5s linear; 

.navbar { 
 
    min-height: 80px; 
 
    transition: all 0.5s linear; 
 
} 
 
.navbar-brand { 
 
    padding: 0 15px; 
 
    height: 80px; 
 
    line-height: 80px; 
 
    transition: all 0.5s linear; 
 
} 
 
.navbar-nav > li > a { 
 
    padding-top: 0px; 
 
    padding-bottom: 0px; 
 
    line-height: 80px; 
 
    transition: all .5s linear; 
 
} 
 
.affix { 
 
    width: 100%; 
 
    top: 0px; 
 
    min-height: 60px; 
 
    transition: all 0.5s linear; 
 
} 
 

 
.affix .navbar-brand { 
 
    padding: 0 15px; 
 
    height: 60px; 
 
    line-height: 60px; 
 

 
} 
 
.affix .navbar-nav > li > a { 
 
    padding-top: 0px; 
 
    padding-bottom: 0px; 
 
    line-height: 60px; 
 
    
 
} 
 
.container1 { 
 
    height: 2000px; 
 
}

<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" /> 
 
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script> 
 
<script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script> 
 
    <nav class="navbar navbar-inverse" data-spy="affix" data-offset-top="0"> 
 
    <div class="container"> 
 
    <!-- Brand and toggle get grouped for better mobile display --> 
 
    <div class="navbar-header"> 
 
     <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false"> 
 
     <span class="sr-only">Toggle navigation</span> 
 
     <span class="icon-bar"></span> 
 
     <span class="icon-bar"></span> 
 
     <span class="icon-bar"></span> 
 
     </button> 
 
     <a class="navbar-brand" href="#">Brand</a> 
 
    </div> 
 

 
    <!-- Collect the nav links, forms, and other content for toggling --> 
 
    <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1"> 
 
     <ul class="nav navbar-nav"> 
 
     <li class="active"><a href="#">Link <span class="sr-only">(current)</span></a></li> 
 
     <li><a href="#">Link</a></li> 
 
     <li class="dropdown"> 
 
      <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Dropdown <span class="caret"></span></a> 
 
      <ul class="dropdown-menu"> 
 
      <li><a href="#">Action</a></li> 
 
      <li><a href="#">Another action</a></li> 
 
      <li><a href="#">Something else here</a></li> 
 
      <li role="separator" class="divider"></li> 
 
      <li><a href="#">Separated link</a></li> 
 
      <li role="separator" class="divider"></li> 
 
      <li><a href="#">One more separated link</a></li> 
 
      </ul> 
 
     </li> 
 
     </ul> 
 
     
 
     <ul class="nav navbar-nav navbar-right"> 
 
     <li><a href="#">Link</a></li> 
 
     <li class="dropdown"> 
 
      <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Dropdown <span class="caret"></span></a> 
 
      <ul class="dropdown-menu"> 
 
      <li><a href="#">Action</a></li> 
 
      <li><a href="#">Another action</a></li> 
 
      <li><a href="#">Something else here</a></li> 
 
      <li role="separator" class="divider"></li> 
 
      <li><a href="#">Separated link</a></li> 
 
      </ul> 
 
     </li> 
 
     </ul> 
 
    </div><!-- /.navbar-collapse --> 
 
    </div><!-- /.container-fluid --> 
 
</nav> 
 

 
<div class="container1"></div>