#redes{
    position:fixed;
    z-index:10000;
    top:200px;
    left:0px;
}

#twitter a{
    padding:20px 20px;
    background:skyblue;
    text-decoration:none;
    color:white;
    transition:0.5s ease-out;
}

#twitter a:hover{
    padding:20px 30px;
    transition:0.5s ease-out;
    background:black;
}

#facebook a{
    padding:20px 20px;
    background:blue;
    text-decoration:none;
    color:white;
    transition:0.5s ease-out;
}

#facebook a:hover{
    padding:20px 30px;
    transition:0.5s ease-out;
    background:black;
}

#youtube a{
    padding:20px 20px;
    background:red;
    text-decoration:none;
    color:white;
    transition:0.5s ease-out;
}

#youtube a:hover{
    padding:20px 30px;
    transition:0.5s ease-out;
    background:black;
}