html,
body {
  width: 100%;
  font-size: 14px;
  color: black !important;
  padding: 0;
  margin: 0;
}
p,
h3,
h4 {
  text-indent: 2em;
}
table {
  border-collapse: collapse;
}
td,
th {
  border: 1px solid white; /* 1px宽，实线，黑色 */
}