/* Nawigacja */
html, body {
    margin: 0;
    height: 100%;
    font: 11px verdana,sans-serif; 
    margin: 10; 
    text-align: center; 
    overflow: hidden;
}

.layout {
    display: flex;
    height: 100%;
}

.nav {
    width: 305px;
    box-sizing: border-box;
    overflow-y: auto; /* independent scroll */
}

.nav h4 {
    font: bold 11px verdana,sans-serif; 
    margin-bottom: 0; 
}

.nav table {
    margin: auto;
    border-collapse: collapse;
    margin-top: 4px;
}

.nav p {
    font: bold 11px verdana,sans-serif;
}
.nav table a {
    display: inline-block;
    padding: 0px;
    text-decoration:none;
    text-align: center;
    user-select: none;
}

.nav-btn {
    display: inline-block;
    font: bold 18px Verdana, sans-serif;
    width: 48px;
    height: 64px;
    line-height: 60px;
    padding: 4px 0;
    margin-left: 4px;
    margin-right: 0px;
    margin-top: 1px;
    text-decoration: none;
    box-sizing: border-box;
    user-select: none;
}

.nav-btn-prakt {
    line-height: 20px !important;
    padding-top: 10px !important;
}

.nav-btn-prakt .prakt_label {
    font-size: x-small;
    padding: 1px;
}

.nav-btn:active {
    padding-top: 1px;
}
.nav-btn-prakt:active {
    padding-top: 11px !important; /* +1 niz normalnie */
}

.nav-btn-large:active {
    padding-top: 1px;
}


/* 
.nav a:link,a:visited {
    color:#fff;
}

.nav a:visited {
    color:#fff;
} 
*/

.nav td {
    vertical-align: middle;
}

.tabela tr>td>div {
    text-align: center;
}

.nav-btn-large {
    display: inline-block;
    font: bold 18px Verdana, sans-serif;
    width: 270px;
    height: 64px;
    line-height: 58px;
    padding: 0px 0;
    margin-left: 2px;
    margin-right: 2px;
    margin-top: 1px;
    margin-bottom: 12px;
    text-decoration: none;
    box-sizing: border-box;
}

.content {
    flex: 1;
    width: 100%;
    height: 100%;
    padding: 0px;
    border-top: none;
    border-bottom: none;
    border-right: none;
    display: block;
}