body   { font-size: 13px; font-family: Tahoma, Verdana, Arial; margin: 0 }
input { color: #000000; font-size: 11px; font-family: Tahoma, Verdana, Arial; font-weight: bold }
.content   { font-size: 13px; font-family: Tahoma, Verdana, Arial; text-align: justify; padding: 5px 9px 5px 5px }
.copy  { font-size: 10px; font-family: Tahoma, Verdana, Arial; background-image: url(images/fon02.gif); text-align: center; height: 62px }
.rightmenu     { font-size: 13px; font-family: Tahoma, Verdana, Arial; text-align: left; padding: 4px; width: 175px }
.golostable { font-size: x-small; border-width: 0 }
.topan { background-image: url(images/fon03.gif); text-align: center; padding-bottom: 6px; height: 42px }
.toppanel    { color: #000000; font-size: 11px; font-family: Tahoma, Verdana, Arial; text-decoration: none; margin: 5px 10px 0; padding-bottom: 10px }
.table_center { font-size: 13px; text-align: center }
small { font-size: 11px }
.toppanel:hover    { color: #294a7b }
form { margin: 0 }
a { color: maroon; font-weight: bold }
a:hover { text-decoration: none }
.autor { font-style: italic; font-weight: bold; text-align: right }
.ttx  { font-size: 13px; text-align: center; width: 100% }
.ttx2  { font-size: 13px; text-align: center; width: 80% }
.ttx3  { font-size: 13px; text-align: center; width: 60% }
.left_table  { font-size: 13px; text-align: left; }
.enz    { font-size: 13px; text-align: justify; width: 100% }
.bred_t      { font-size: 13px; text-align: left; margin-left: 20px; width: 75%; vertical-align: top }
.files { font-size: x-small; text-align: center; width: 100%; border: solid 1px gray }
.files_opisan { text-align: justify; padding-right: 6px; padding-left: 6px; vertical-align: top }
h3  { font-size: 15px; line-height: 1 }
h5  { font-size: 10px }
code { font-size: 100%; color: #060; }
table { font-size: 13px; font-family: Tahoma, Verdana, Arial; margin: 0 }
th {
  position: -webkit-sticky;
  position: sticky;
  top: -3px; // при нуле в chrome остаётся странный зазор
  z-index: 2;
}