.box { border: solid 1px #000; }
.box-no_top { border-left: 1px solid #000; border-bottom: 1px solid #000; border-right: 1px solid #000; }
.box-no_bottom { border-top: 1px solid #000; border-right: 1px solid #000; border-left: 1px solid #000; }
.box-no_left { border-top: 1px solid #000; border-right: 1px solid #000; border-bottom: 1px solid #000; }
.box-no_right { border-top: 1px solid #000; border-left: 1px solid #000; border-bottom: 1px solid #000; }
.box-left_right { border-left: 1px solid #000; border-right: 1px solid #000; }
.box-top_bottom { border-top: 1px solid #000; border-bottom: 1px solid #000; }
.box-top_right { border-top: 1px solid #000; border-right: 1px solid #000; }
.box-top_left { border-top: 1px solid #000; border-left: 1px solid #000; }
.box-bottom_right { border-right: 1px solid #000; border-bottom: 1px solid #000; }
.box-bottom_left { border-left: 1px solid #000; border-bottom: 1px solid #000; }
.box-left { border-left: 1px solid black; }
.box-right { border-right: 1px solid black; }
.box-bottom { border-bottom: 1px solid black; }
.box-top { border-top: 1px solid black; }