html {display:table;margin:auto;}
body {display:table-cell;background-color:ivory; color:black;font-family:'Roboto',sans-serif;padding-left:5px;padding-right:5px;}
input   {font-size:90%;}
select  {font-size:90%;}
h1      {text-align:center;color:#006400;font-size:150%;}
h2      {text-align:center;font-size:120%;}
h3      {font-weight:normal;font:size:70%;padding-bottom:0px;margin-bottom:-15px;}
h4      {text-align:center;}
p,li    {text-align:justify;}
td      {vertical-align:top}
b       {font-weight:600;}

A:link {color:blue; text-decoration:none;}
A:visited {color:blue; text-decoration:none;}
A:hover {text-decoration:underline;}
A:active {text-decoration:underline;}

.tabform {background-color:lavender; padding-top:5pt;}
.tabtext {background-color:lemonchiffon;}
.tablink {background-color:azure; 
          border-style:solid; border-width:1px; border-collapse:collapse; border-color:blue;
          padding-left:6px;padding-right:6px;font-size:90%;}

.bas {vertical-align:baseline; font-weight:bold;}
.subtit {color:blue;font-weight:bold;}
.bkdate {font-size:small;text-align:right; }
.mainblo {padding-left:5px;padding-right:15px;vertical-align:top;}
.sidbox {background-color:#e5ffbb;border:2pt solid black;max-width:100%;padding-left:5px;}

p#descrip {font-size:90%;}
p#exampl  {font-size:80%;}
ul#descrip {font-size:90%;}

.kopf {background-color:teal; text-align:right;border-width:2pt;border-style:solid;border-color:black;font-size:80%;font-weight:bold;}
A.kopfa:link {color:white; text-decoration:none;}
A.kopfa:visited {color:white; text-decoration:none;}
A.kopfa:hover {text-decoration:underline;}
A.kopfa:active {text-decoration:underline;}

.responsive {max-width:100%;height:auto;}
#topbut {
  display: none;
  position: fixed;
  bottom: 20px;
  right: 30px;
  z-index: 99;
  font-size: 30px;font-weight:bolder;
  border: none;
  outline: none;
  background-color: #aaa;
  color: white;
  cursor: pointer;
  padding-top:5px;padding-right:10px;padding-bottom:5px;padding-left:10px;
  border-radius: 6px;}
#topbut:hover {background-color: #444;}