تغيير شكل صندوق الاكواد

.codemain{
background-color: transparent;
background-image:url('images/css_img_code.gif');
background-repeat: no-repeat;
color:#465584;
font: normal 12px tahoma;
margin-right:auto;
margin-left:auto;
margin-top:5px;
margin-bottom:5px;
padding-top:30px;
padding-bottom:20px;
padding-right:5px;
padding-left:5px;
border:1px solid #dbdbdb;
max-height: 50px;
min-height: 100px;
width:auto;
direction:ltr;
overflow:scroll;
}

     .codemain {
        text-align: center;
        margin: auto;
        padding: 2px;
        height: auto;
        width:70%;
        font-family: tahoma;
        font-size: 12px;
        color: #F06F0F;
        background-color: #F7F7F7;
        border-top-style: dotted;
        border-right-style: solid;
        border-bottom-style: dotted;
        border-top-width: 2px;
        border-right-width: 5px;
        border-bottom-width: 2px;
        border-top-color: #CCCCCC;
        border-right-color: #148D9F;
        border-bottom-color: #CCCCCC;
        float: left;
          -moz-border-radius: 2px 2px 2px 2px;
            border-radius: 10px 10px 10px 10px;
    }