:root {
    min-height: 100%;
}

html, body {
    position: relative;
    width: 100%;
    min-height: 100%;
    margin: 0;
    padding: 0;
    /*font-family: 'Arial', sans-serif;
    font-size: 14pt;
    color: #000;
    background-color: #fff;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;*/
}

main {
    min-height: 100%;
    padding-top: 5px;
    padding-left: 10px;
    padding-right: 10px;
    padding-bottom: 60px;
}

.hidden {
    display: none;
    visibility: hidden;
}

/*#contents {
    display: flex;
    flex-direction: row;
}

#contents #sidebar {
    display: flex;
    flex-direction: column;
    width: 384px;
    min-height: 100vh;
    background-color: #C2C2C2;
    padding: 20px;
}

#contents #sidebar button:hover {
    cursor: pointer;
}

#contents #sidebar button:hover,
#contents #sidebar button:focus,
#contents #sidebar a:hover,
#contents #sidebar a:focus {
    background-color: #000000;
    color: #FFFFFF;
}

#contents #sidebar hr {
    background-color: #000000;
    width: 100%;
    height: 1px;
}

#contents main {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    padding: 20px;
}

.btn {
    display: inline-block;
    padding: 10px 20px;
    background-color: #C2C2C2;
    color: #000000;
    text-decoration: none;
    text-align: center;
    border-radius: 5px;
    border: 1px solid #000000;
}

.btn-panel {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    margin-bottom: 20px;
}*/