* {
	padding:0;
	margin:0;
}

body {
	color: #333;
	font: 14px Sans-Serif;
	padding: 0px;
	background: #eee;
}

h1 {
	text-align: center;
	padding: 20px 0 12px 0;
	margin: 0;
}
h2 {
	font-size: 16px;
	text-align: center;
	padding: 0 0 12px 0; 
}

#container {
	box-shadow: 0 5px 10px -5px rgba(0,0,0,0.5);
	position: relative;
	background: white; 
}

table {
	background-color: #F3F3F3;
	border-collapse: collapse;
	width: 100%;
	margin: 15px 0;
}

th {
	background-color: #FE4902;
	color: #FFF;
	cursor: pointer;
	padding: 5px 10px;
}

th small {
	font-size: 9px; 
}

td, th {
	text-align: left;
}

a {
	text-decoration: none;
}

td a {
	color: #663300;
	display: block;
	padding: 5px 10px;
}
th a {
	padding-left: 0
}

td:first-of-type a {
	background: url(./.images/file.png) no-repeat 10px 50%;
	padding-left: 35px;
}
th:first-of-type {
	padding-left: 35px;
}

td:not(:first-of-type) a {
	background-image: none !important;
} 

tr:nth-of-type(odd) {
	background-color: #E6E6E6;
}

tr:hover td {
	background-color:#CACACA;
}

tr:hover td a {
	color: #000;
}
<style>
	@-webkit-keyframes pulsate {
 100% { color: #ffe; text-shadow: 0 -1px rgba(0,0,0,.3), 0 0 5px #0, 0 0 8px #0; }
}
@keyframes pulsate {
 50% { color: #ffe; text-shadow: 0 -1px rgba(0,0,0,.3), 0 0 5px #0, 0 0 8px #0; }
}
#blink7 {
font-size:150%;
  color: rgb(255,5,5);
  text-shadow: 0 -1px rgba(0,0,0,.1);
  background: #ffffff;
  -webkit-animation: pulsate 0.8s linear infinite;
  animation: pulsate 1.0s linear infinite;
}
* {
  box-sizing: border-box;
}
.menu {
  float: left;
  width: 20%;
}
.menuitem {
  padding: 8px;
  margin-top: 7px;
  border-bottom: 1px solid #f1f1f1;
}
.main {
  float: left;
  width: 60%;
  padding: 0 20px;
  overflow: hidden;
}
.right {
  background-color: lightblue;
  float: left;
  width: 20%;
  padding: 10px 15px;
  margin-top: 7px;
}


@media only screen and (max-width:800px) {
  /* For tablets: */
  .main {
    width: 80%;
    padding: 0;
  }
  .right {
    width: 100%;
  }
}
@media only screen and (max-width:500px) {
  /* For mobile phones: */
  .menu, .main, .right {
    width: 100%;
  }
}

/* Add a black background color to the top navigation */
.topnav {
    background-color: #333;
    overflow: hidden;
}

/* Style the links inside the navigation bar */
.topnav a {
    float: left;
    display: block;
    color: #f2f2f2;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
    font-size: 17px;
}

/* Change the color of links on hover */
.topnav a:hover {
    background-color: #ddd;
    color: black;
}

/* Add an active class to highlight the current page */
.active {
    background-color: #4CAF50;
    color: white;
}
.active2 {
    background-color: #ff0027;
    color: white;
}
.active3 {
    background-color: #008CBA;
    color: white;
}

.active4 {
    background-color: #220bf3;
    color: white;
}
.active5 {
    background-color: #ff6700;
    color: white;
}

/* Hide the link that should open and close the topnav on small screens */
.topnav .icon {
    display: none;
}

.html-atri {
    color: #FF0000;
}
.html-atri2 {
    color: #0a11cf;
}
.html-atri3 {
    color: #ff6700;
}

span.app {
  border: #4CAF50 1px solid;
}

hr {
    border:0;
    margin:0;
    width:100%;
    height:2px;
    background:#4CAF50;
}

h1 {
    color: white;
    text-shadow: 2px 2px 4px #000000;
}

h2 {
    color: white;
    text-shadow: 2px 2px 4px #000000;
}


.button {
    background-color: #4CAF50; /* Green */
    border: none;
    color: white;
    padding: 8px 8px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 12px;
    margin: 4px 2px;
    -webkit-transition-duration: 0.4s; /* Safari */
    transition-duration: 0.4s;
    cursor: pointer;
}

.button1 {
    background-color: white; 
    color: black; 
    border: 2px solid #ff6700;
        border-radius: 25px;
}

.button1:hover {
    background-color: #ff6700;
    color: white;
        border-radius: 25px;
}

.button2 {
    background-color: white; 
    color: black; 
    border: 2px solid #0a11cf;
        border-radius: 25px;
}

.button2:hover {
    background-color: #0a11cf;
    color: white;
        border-radius: 25px;
}

.button3 {
    background-color: white; 
    color: black; 
    border: 2px solid #f44336;
        border-radius: 25px;
}

.button3:hover {
    background-color: #f44336;
    color: white;
        border-radius: 25px;
}

.button4 {
    background-color: white;
    color: black;
    border: 2px solid #e7e7e7;
        border-radius: 25px;
}

.button4:hover {background-color: #e7e7e7;     border-radius: 25px;}

.button5 {
    background-color: white;
    color: black;
    border: 2px solid #555555;
        border-radius: 25px;
}

.button5:hover {
    background-color: #555555;
    color: white;
        border-radius: 25px;
}








/* icons for file types (icons by famfamfam) */

/* images */
table tr td:first-of-type a[href$=".jpg"], 
table tr td:first-of-type a[href$=".png"], 
table tr td:first-of-type a[href$=".gif"], 
table tr td:first-of-type a[href$=".svg"], 
table tr td:first-of-type a[href$=".jpeg"]
{background-image: url(./.images/image.png);}

/* zips */
table tr td:first-of-type a[href$=".zip"] 
{background-image: url(./.images/zip.png);}

/* css */
table tr td:first-of-type a[href$=".css"] 
{background-image: url(./.images/css.png);}

/* docs */
table tr td:first-of-type a[href$=".doc"],
table tr td:first-of-type a[href$=".docx"],
table tr td:first-of-type a[href$=".ppt"],
table tr td:first-of-type a[href$=".pptx"],
table tr td:first-of-type a[href$=".pps"],
table tr td:first-of-type a[href$=".ppsx"],
table tr td:first-of-type a[href$=".xls"],
table tr td:first-of-type a[href$=".xlsx"]
{background-image: url(./.images/office.png)}

/* videos */
table tr td:first-of-type a[href$=".avi"], 
table tr td:first-of-type a[href$=".wmv"], 
table tr td:first-of-type a[href$=".mp4"], 
table tr td:first-of-type a[href$=".mov"], 
table tr td:first-of-type a[href$=".m4a"]
{background-image: url(./.images/video.png);}

/* audio */
table tr td:first-of-type a[href$=".mp3"], 
table tr td:first-of-type a[href$=".ogg"], 
table tr td:first-of-type a[href$=".aac"], 
table tr td:first-of-type a[href$=".wma"] 
{background-image: url(./.images/audio.png);}

/* web pages */
table tr td:first-of-type a[href$=".html"],
table tr td:first-of-type a[href$=".htm"],
table tr td:first-of-type a[href$=".xml"]
{background-image: url(./.images/xml.png);}

table tr td:first-of-type a[href$=".php"] 
{background-image: url(./.images/php.png);}

table tr td:first-of-type a[href$=".js"] 
{background-image: url(./.images/script.png);}

/* directories */
table tr.dir td:first-of-type a
{background-image: url(./.images/folder.png);}