body{
    background-color: #333333;
    color: #cccccc;
}

.header{
    height: 120px;
    background-color: teal;
    position: fixed;
    left: 0;
    right: 0;
    top: 0;
    text-align: center;
}


.main{
    margin-top: 125px;
}
.jpg{
    background-color: #444444;
}
.png{
    background-color: #444444;
}
.gif{
    background-color: #444444;
}

.menu button{
    background-color: #333333;
    color: white;
    padding: 10px 15px;
    margin-right: 5px;
    border: none;
    cursor: pointer;
    box-shadow: 2px 2px 1px #222222;
}