hey guys i need to make a new block look for my shoot box..

i tryed to use the existing block css and i can't get the hight to budge..

and even the shoot boox ..i can't get the hight to adjust..so the form is out of the box.. ..

(homepage.css for shootbox)
/* homepage */
div.homepage {
}

h2.shoutheader{
    padding: 5px 10px 0px 40px;
    height:36px;
    background: transparent url(bubble.gif) no-repeat scroll left top;
}
div#shoutbox_wrap {height:400px;}
div#shoutbox_items {height:150px;overflow:auto;}
div#shoutbox_items ul li { line-height:20px;padding-left:5px;}
div#shoutbox_items ul li.odd {background-color: #FFB3FF;}
div#shoutbox_items ul li.even {background-color:#FFF;}
div#shoutbox_items a strong {font-weight:bold;}
div#shoutbox_items em { font-style:italic; color:grey;}
div#shoutbox_items span.delete_shout a {color:#FF9D9D;}
div#shoutbox_wrap input.text {width:200px; margin: 5px 0; border:0;}

how can i make anew block?