body{
    background-color: grey;
    margin: 0;
}
.header{
    left: 200px;
    background-color: black;
    color: white;
    padding: 60px;
    text-align: center;
}
ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    width: 200px;
    background-color: #f1f1f1;
    position: fixed;
    height: 100%;
    overflow: auto;
}

li a {
    display: block;
    color: #000;
    padding: 8px 16px;
    text-decoration: none;
}

li a.active {
    background-color: #4CAF50;
    color: white;
}

li a:hover:not(.active) {
    background-color: #555;
    color: white;
}
table{
    margin: 0px 200px;
}
.download{
    margin: 0px 220px;
    height: 330px;
    width: 240px;
    background-color: rgb(28, 27, 27);
    color: white;
}
.pic1{
    margin: 15px 85px;
}
.header1{
    text-align: center;
    color: white;
}
.button {
    background-color:#4CAF50;
    border:none;
    color:white;
    padding:15px 32px;
    margin:0px 45px;
    text-decoration:none;
    display:inline-block;
    font-size:16px;
    cursor:pointer;
}

.button:hover {
    background-color:#3e8e41;
}
.little{
    background-color: #000;
    padding: 35px;
    color: white;
}
.pic{
    margin: 15px 15px;
    width: 128px;
    height: 128px;
    float: left;
}
.word h1{
    color: white;
    margin: 0px 15px;
}
.word p{
    color: white;
    margin: 0px 15px;
}
.other{
    border: 2px solid white;
    color: white;
    padding: 40px;
    margin: 10px;
    width: 300px;
}
.other a{
    color: white;
    
}
.other a:hover{
    color: blue;
    
}
.download1{
    margin: -310px 500px;
    height: 330px;
    width: 240px;
    background-color: rgb(28, 27, 27);
    color: white;
}
.download2{
    margin: -310px 780px;
    height: 330px;
    width: 240px;
    background-color: rgb(28, 27, 27);
    color: white;
}
.download3{
    margin: 330px 220px;
    height: 330px;
    width: 240px;
    background-color: rgb(28, 27, 27);
    color: white;
}
.download4{
    margin: -640px 500px;
    height: 330px;
    width: 240px;
    background-color: rgb(28, 27, 27);
    color: white;
}
.pic2{
    width: 64px;
    height: 56px;
}
.little-header{
    background-color: #000;
    padding: 20px;
    color: white;
    text-align: center;
}
.little-world{
    background-color: #555;
    color: white;
    margin: 5px 200px;
    width: 88.5%;
}