CSS3 平分

.wrap {
width: 100%;
height: 50px;
display: -moz-box;
display: -webkit-box;
display: box;
line-height: 50px;

}

.wrap a {
-moz-box-flex: 1;
-webkit-box-flex: 1;
box-flex: 1;
border-right: 1px solid #ccc;
text-align: center;
display: block;
color: #474747;
text-decoration: none;

}