html {
    display: table;
    margin: auto;
    height: 100%;
}

body {
    display: table-cell;
    vertical-align: middle;
    background-color: #e1e8f0;
}

table {
   border-collapse: collapse
}

.f1 {
   font-size: 19pt;
   color: #000000;
   font-family: Sans-Serif;
}

.f2 {
   font-size: 15pt;
   color: #000000;
   font-family: Sans-Serif;
   text-align: center;
}

.f3 {
   font-size: 10pt;
   color: #000000;
   font-family: Sans-Serif;
   text-align: center;
}

.f4 {
   font-size: 13pt;
   color: #000000;
   font-family: Sans-Serif;
   text-align: center;
}

a:link {
   text-decoration: underline;
   color: #000000;
 }
 
 a:visited {
   text-decoration: none;
   color: #000000;
 }
 
 a:hover {
   text-decoration: none;
 }
 
 a:active {
   text-decoration: underline;
 }