html - img と text の垂直方向の配置

Question

<div class="card">
<img class='sound' src='https://www.google.com/images/srpr/logo4w.png'>
<div class='txt'>
 this is a sentence.this is a sentencethis is a sentence.
 </div></div>

.card{
    margin:5px 14px;
    border:thin solid blue;
}
.sound{
    width:32px;
    height:32px;
    cursor:pointer;
}
.txt{
    display:inline-block;
    margin-left:25px;
    vertical-align:middle;  //doesn't work
    border:thin solid red;
}

.txtdiv を.sound画像の中央に配置するにはどうすればよいですか? フィドルはこちら