* {
    margin:0;
    padding:0;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;

    /*falta lo del margin y lo primero*/
}


.redes {
position:fixed ;
left:0;
top:200px;
z-index: 2000;

}


    .redes ul {
    list-style:none;
    }

        .redes ul li a {
        display:inline-block;
        color: #fff;
        background: #000;
        padding: 10px 15px;
        text-decoration:none; 
        -webkit-transition:all 500ms ease;
        -o-transition:all 500ms ease;
        transition:all 500ms ease;
        }

            .redes ul li a:hover {
            padding: 10px 25px;
            background: #000;
            }


.redes ul li  .icon-facebook {
    background:#3b5998;
}

.redes ul li  .icon-X {
    background-color: #FF0000;
}
.redes ul li  .icon-mail {
    background:#666666;
}
.redes ul li  .icon-apps    {
    background:#d95232;

}
.redes ul li .icon-instagram {  
  background: #125688;  
  color: white;  
}