.scrolltbody {
    display: block;
    width: 860px;
    border-collapse: collapse;
}
.scrolltbody th {background:#e5e5e5; text-align:center; }
.scrolltbody td { border: 1px solid #d7d7d7;}
.scrolltbody tbody {
    display: block;
    height: 300px;
    overflow: auto;
}
.pw40 { width: 40px; }
.pw60 { width: 60px; }
.pw80 { width: 80px; }
.pw100 { width: 100px; }

.pw120 { width: 120px; }
.pw160 { width: 160px; }
.pw200 { width: 200px; }
.pw400 { width: 400px; }
.pw700 { width: 700px; }

/*.scrolltbody th:last-child { width: 400px; }
.scrolltbody td:last-child { width: calc( 400px - 19px );  }*/