مشكلة معي بالنسخة

/* Signature-------------------------------------------------*/.signature {
font-size: 1.1em;
border-top: 1px  solid black;
clear: center;
line-height: 140%;
overflow: hidden;
width: 100%;
margin-top: 1.5em;
border-bottom:1px solid black;
border-left:1px solid black;
border-right:1px solid black;

}

/* Signature-------------------------------------------------*/.signature {
font-size: 1.1em;
border-top: 1px solid #CCCCCC;
clear: left;
line-height: 140%;
overflow: hidden;
width: 100%;
margin-top: 1.5em;
}