How to vertically center align div having back ground image

This question already has an answer here:

How to vertically center a div for all browsers? 41 answers

---

Use this CSS. You'll have that Google logo centered vertically.

#imgDiv {
    width: 300px;
    height: 100px;
    background-image: url("http://www.google.com/intl/en_com/images/srpr/logo3w.png");
    background-repeat: no-repeat;
    border: 1px solid blue;

    position:relative;
    top: 50%;
    -moz-transform: translatey(-50%);
    -ms-transform: translatey(-50%);
    -o-transform: translatey(-50%);
    -webkit-transform: translatey(-50%);
    transform: translatey(-50%);
}

---

Easiest way would be to set the height of #imgDiv to height:100%; and then set the background-position to center, center.

#imgDiv {
    width: 300px;
    height: 100%;
    background-image: url("http://www.google.com/intl/en_com/images/srpr/logo3w.png");
    background-repeat: no-repeat;
    border: 1px solid blue;
    background-position:center,center;
}

---

Try like this: Demo

Updated demo as per your requirement: Note: If the text height increases, the background image will move upwards

div.outer {
display:table;
border: 1px solid red;
height:300px;
width:300px
}
.inner {
    display:table-cell;
    vertical-align:middle;
    line-height:normal;
    margin:0 auto;
    text-align:center;
}
#imgDiv {
    width: 300px;
    height: 100px;
    background-image: url("http://www.google.com/intl/en_com/images/srpr/logo3w.png");
    background-position: center;
    background-repeat: no-repeat;
    border: 1px solid blue;
}
#spanid {
    text-align: center;
}

HTML:

<div class="outer">
    <div class="inner">
        <div id="imgDiv"></div> <span id="spanid">Some text....</span>
    </div>
</div>

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