.box_wrapper {
    float: left;
    width: 100%;
}

.box_wrapper .box_center {
    /* will size after*/
    width: 95%;
}

.box_wrapper .box_top,
.box_wrapper .box_bottom {
    width: 100%;
}

.box_wrapper .box_top,
.box_wrapper .box_top *,
.box_wrapper .box_bottom,
.box_wrapper .box_bottom * {
    float: left;
    height: 13px;
}

.box_wrapper .box_left {
    float: left;
    width: 14px;
}

.box_wrapper .box_right {
    float: right;
    width: 14px;
}