.plussub {
width:120px;
height:32px;
border:1px solid #ccc;
background:#fff;
margin:0 auto;
}
.plussub span {
width:30px;
height:30px;
float:left;
text-align:center;
line-height:30px;
cursor:pointer;
}
.plussub .sub {
border-right:1px solid #ccc;
}
.plussub .plus {
border-left:1px solid #ccc;
}
.plussub input[type="text"] {
border:none;
height:30px;
width:56px;
text-align:center;
float:left;
line-height:30px;
}
多用于产品加减用的框