change main page in joomla

i have created only one page in joomla last time and i forget how to change it i want to take the space from the top
the site is:
please check the site and you will see the anomaly
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Allan NisbetOwner at Storm IT Solutions LTDCommented:

If I understand you want the space at the top above the text removed.

If you look at your css {
margin: 0 auto;
position: relative;
z-index: -1;
width: 100%;
height: 150px;
margin-top: -1px;
margin-bottom: -6px;

Open in new window

and change height to 0px this will remove the block of nothing at the top.

Hope this helps

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