hi dear,
"edit" the template "header" ,
look CODE
<a href="index.php" title="{$_CONF['info_row']['title']}" rel="home" accesskey="1">
<img src="{$image_path}/logo.png" style="vertical-align:top"
alt="{$_CONF['info_row']['title']}" border="0" />
</a>
replace it with this
CODE
<div class="logo"><a href="index.php" title="{$_CONF['info_row']['title']}" rel="home" accesskey="1">
<img src="{$image_path}/logo.png" style="vertical-align:top"
alt="{$_CONF['info_row']['title']}" border="0" />
</a></div>
then go to edit css & :
1- add this class CODE
.logo img{
width:100%;
height:auto;
}
2- remove "height: 120px;" from #logostrip