I have the following HTML code:
<div id="slideClick">
    <div style="padding: 0; margin: 0 auto; width: 100%; height: 100%; text-align: center; border: 1px solid blue;">
        <span class="sideMsg">MESSAGES</span>
    </div>
</div>
CSS:
.sideMsg
{
        color:#333;
    -webkit-transform:rotate(90deg);
    -moz-transform:rotate(90deg);
    -o-transform: rotate(90deg);
    filter: progid:DXImageTransform.Microsoft.BasicImage(rotation=3);
    white-space:nowrap;
    display:inline-block;
    bottom:0;
    font-family: ‘Trebuchet MS’, Helvetica, sans-serif;
    font-size:14px;
    font-weight:normal;
    text-shadow: 0px 0px 1px #333;
    border: 1px solid red;
}
#slideClick {
    float:left;
    height:90px;
    width:40px;
    background:#EE8D40;
    -webkit-border-top-left-radius: 10px;
    -webkit-border-bottom-left-radius: 10px;
    -moz-border-radius-topleft: 10px;
    -moz-border-radius-bottomleft: 10px;
    border-top-left-radius: 10px;
    border-bottom-left-radius: 10px;
    cursor: pointer;
    text-align: center;
}
Displays this:

How can I center the SPAN horizontally and vertically inside the blue DIV?
 
     
     
    