.center {
    margin-left: auto;
    margin-right: auto;
}

body {
    margin: 0;
    padding: 0;
    overflow: hidden;
    height: 100%;
    max-height: 100%;
    font-family: Sans-serif;
    line-height: 1.5em;
}

#nav {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    width: 300px; /* Width of navigation frame */
    height: 100%;
    overflow: hidden; /* Disables scrollbars on the navigation frame. To enable scrollbars, change "hidden" to "scroll" */
    background-image: url("pic/023.jpg");
}

main {
    position: fixed;
    top: 0;
    left: 300px; /* Set this to the width of the navigation frame */
    right: 0;
    bottom: 0;
    overflow: auto;
    max-width: 2000px;
    background-image: url("pic/wired.gif");

}

.innertube {
    margin: 15px; /* Provides padding for the content */
    margin-left: 50px;
}

.innertube_left {
    margin: 15px; /* Provides padding for the content */
}


p {
    color: #555;
}

nav ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
}

nav ul a {
    color: darkgreen;
    text-decoration: none;
}

* html main {
    height: 100%;
    width: 100%;
}

table.formated {
    border-collapse: collapse;
    border: 1px solid;
}

.formated td, th {
    padding: 5px;
}

.formated tr:nth-child(even) {
    background-color: #f2f2f2;
}