body {
    
    background-color: rgb( 217, 221, 218 );
    color: black;
    overflow: hidden;
    margin: 0px;
    font-weight: 100;
} 

div {
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: -moz-none;
    -o-user-select: none;
    user-select: none;
}