{style}
{literal}
.maintenance_cont{
    width:500px;
    margin:0 auto;
    padding-top: 20px;
}
{/literal}
{/style}
<div class="maintenance_cont">
    {text key='admin+maintenance_text_value'}
    {if !empty($disableMessage)}<div style="padding-top: 50px; text-align: center;">{$disableMessage}</div>{/if}
</div>