Como eu arrumo a largura ?

Código:

.postprofile {
border-color: black;
border-right-style: solid;
border-right-width: 1px;
color: black;
display: inline;
float: left;
margin: 5px 0 0;
min-height: 80px;
position: relative;
width: 15%;
}

.postprofile {
border-color: black;
border-right-style: solid;
border-right-width: 1px;
color: black;
display: inline;
float: left;
margin: 5px 0 0;
min-height: 80px;
position: relative;
width: 15%;
}

.postbody {
clear: both;
color: black;
float: right;
line-height: 1.48em;
padding: 0;
width: 76%;
}

Código:

.postbitlegacy .userinfo {
float: left;
position: relative;
width: 180px;
padding: 2px 10px 5px;
font-size: 12px;
display: block;
background: #F8F8F8 none;
clear: both;
}
.postbitlegacy .postdetails, .eventbit .eventdetails {
float: left;
width: 100%;
background: #F8F8F8 none;
_background-image: none;
}