/* Cucco Footer  -  Menu responsivo 
    24/03/2017
    ver na url: https://tableless.com.br/header-responsivo-somente-com-css/
Formatei o “label .control-nav” para ser o botão responsivo, o “label .control-nav-close” para ser a cortina bloqueando o fundo e o ‘nav’ para ficar fixo e redimensionável.
Agora o pulo do gato
Utilizando seletores do CSS3 que são os ‘:checked’ e ‘~’, conseguimos formatar elementos de acordo com a necessidade, veja a documentação.https://www.w3.org/TR/css3-selectors/#selectors
Sendo mais claro, com o seletor ‘~’ você consegue selecionar elemento do mesmo pai declarado depois dele.
Ao marcar o input, no css usando o transform vamos exibir suavemente o menu, 
*/

/* menu list horizontal */
ul.list-auto li a:hover {	
        color: #F79C33;
}

.list-auto, .list-auto li { 
    width: 100%; float: left; display: block; position: relative; 
}
.list-auto, .list-auto li {
    width: auto; 
}

div.footer {
  min-height: 40px;
  position: relative;
  border-bottom: 1px solid #ccc;
  z-index: 2;
}

div.footer ul {
  padding: 0px 10px 0 0;
}

div.footer li a {
  display: block;
  padding: 0 10px;
  color: #ddd;
  font-size: 1.0em;
  /* line-height: auto;        Error in parsing                    /*30px;*/
  text-decoration: none;
  -webkit-transition: all 300ms ease;
  -moz-transition: all 300ms ease;
  -o-transition: all 300ms ease;
  transition: all 300ms ease;
}

input#footer-nav {                                          /* 24/03/2017*/
  visibility: hidden;
  position: absolute;
  left: -9999px;
  opacity: 0;
}

div.footer {
	font-size: 0.8em;
	color: #fff;
	font-weight: bold;
	text-shadow: 1px 1px #363e53;
	margin-top: 20px;
	width: 100%;
	padding-top: 30px;
	background: url(../images/bkgBottom.jpg);
}

div.footerHolder {
	margin: 0 auto;
        width: 100%;                                /* 24/03/2017*/
        max-width: 960px;                           /* width=960px 24/03/2017*/
}

div.footer a {
	color: #fff;
	padding-left: 20px;
	text-decoration: none;
}

div.footer a:hover {
	text-decoration: underline;
}
div.footer div.tradeMarkCucco{                  /* 24/03/2017*/
    float: left;
}
div.footer .float-left{                         /* 24/03/2017*/
    float: left;
}

div.footer div.curtirFB {                                     /* 24/03/2017*/
	float: right;
	padding-right: 5px;
	font-weight: normal;
}

div.footer div.fb-like {                                      /* 24/03/2017*/
	margin-top: -3px;
	float: right;
}

ul.list-auto #footerVoltar {
    display: none;
}
@media screen and (max-width: 767px) {

    ul.list-auto #footerVoltar {
        display: block;
    }
  
    div.footer nav {
        position: fixed;
        top: 0px;
        right: 0;
        bottom: 0;
        width: 200px;
        background: #fff;
        overflow-x: auto;
        z-index: 2;
        -webkit-transition: all 500ms ease;
        -moz-transition: all 500ms ease;
        -o-transition: all 500ms ease;
        transition: all 500ms ease;
        -webkit-transform: translate(100%, 0);
        -ms-transform: translate(100%, 0);
        -moz-transform: translate(100%, 0);
        transform: translate(100%, 0);
  }

div.footer ul.list-auto {
    padding: 0;
  }

  div.footer ul.list-auto li {
    width: 100%;
    border: solid #ccc;
    border-width: 0 0 1px;
  }

  div.footer li a {
	font-size: 1.0em;
    font-weight: normal;
	color: #6d6d6d;
    text-shadow: none;
    padding: 15px 10px;
  }

  div.footer li a:hover {
    background-color: #ccc;
  }

  .footer-nav {                                     /* label icon  3 traços*/
    position: absolute;
    left: 160px;
    display: block;
    width: 30px;
    padding: 5px 0;
    border: solid #FFFFFF;
    border-width: 3px 0;
    z-index: 2;
    cursor: pointer;
  }

  .footer-nav:before {
    content: "";
    display: block;
    height: 3px;
    background: #FFFFFF;
  }

  .footer-nav-close {
    position: fixed; /* label layer */
    right: 0;
    top: 0;
    bottom: 0;
    left: 0;
    display: block;
    z-index: 1;
    background: rgba(0,0,0,0.4);
    -webkit-transition: all 500ms ease;
    -moz-transition: all 500ms ease;
    -o-transition: all 500ms ease;
    transition: all 500ms ease;
    -webkit-transform: translate(100%, 0);
    -ms-transform: translate(100%, 0);
    -moz-transform: translate(100%, 0);
    transform: translate(100%, 0);
  }

    /*<!--
    Utilizando dos seletores do CSS3 que são os ‘:checked’ e ‘~’, conseguimos formatar elementos de acordo com a necessidade, veja a documentação em:https://www.w3.org/TR/css3-selectors/#selectors.
    -->*/
    /*Selects every <nav> element that are preceded by a <input#footer-nav:checked> element */
  input#footer-nav:checked ~ nav,
  input#footer-nav:checked ~ .footer-nav-close {
    -webkit-transform: translate(0, 0);
    -ms-transform: translate(0, 0);
    -moz-transform: translate(0, 0);
    transform: translate(0, 0);
  }   
}           /* Final @media screen and (max-width: 767px) */

@media screen and (max-width: 480px) {
    div.curtirFB {
        display: none;
    }
}

@media only screen and (min-width:768px) and (max-width:920px) {
    div.curtirFB {
        display: none;
    }
}