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<div class="cont_heg_50"></div>

<div class="cont_select_center">

  <!-- Custom select structure --> 
<div class="select_mate" data-mate-select="active" >
<select name="" onchange="" onclick="return false;" id="">
<option value=""  >Seleciona una Opcion </option>
<option value="1">Select option 1</option>
<option value="2" >Select option 2</option>
<option value="3">Select option 3</option>
  </select>
<p class="selecionado_opcion"  onclick="open_select(this)" ></p><span onclick="open_select(this)" class="icon_select_mate" ><svg fill="#000000" height="24" viewBox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg">
    <path d="M7.41 7.84L12 12.42l4.59-4.58L18 9.25l-6 6-6-6z"/>
    <path d="M0-.75h24v24H0z" fill="none"/>
</svg></span>
<div class="cont_list_select_mate">
  <ul class="cont_select_int">  </ul> 
</div>
  </div>
  <!-- Custom select structure --> 


</div> <!-- End div center   -->
	
            
          
!
            
               /* ///  DECORATION CSS ///  */
.cont_select_center {
  position: absolute;
  left: 50%;
  top:50%;
  margin-top: -30px;
  margin-left: -150px;
}

.cont_heg_50 {
  position: absolute;
  height: 50%;
  left: 0;
  top: 0;
  width: 100%;
background-color: #fd7b52;
}
/* ///  END DECORATION CSS  ///  */

.icon_select_mate {
  position: absolute;
  top:20px;
  right: 2%;
  font-size: 16px;
    height: 22px;
  transition: all 275ms;
}

.select_mate {
  position: relative;
  float: left;
  min-width: 300px;
  width: 300px;
  min-height: 60px;
  font-family: 'Roboto';
  color: #777;
  font-weight: 300;
  background-color: #fff;
  box-shadow: 1px 2px 10px -2px rgba(0,0,0,0.3);
  border-radius: 3px;
  transition: all 375ms ease-in-out;
/* Oculto el elemento select */
  select {
  position: absolute;
  overflow: hidden;
  height: 0px;
  opacity: 0;  
    z-index: -1;
  }
}

.cont_list_select_mate {
  position: relative;
  float: left;
  width: 100%;
}

.cont_select_int {
 position: absolute;
  left: 0px;
  top: 0px;
  z-index: 999;
  overflow: hidden;
  height: 0px;
  width: 100%;
  background-color: #fff;
  padding: 0px;
  margin-bottom: 0px;
  margin-top: 0px;
  border-radius: 0px 0px 3px 3px;
  box-shadow: 1px 4px 10px -2px rgba(0, 0, 0, 0.2);
  transition: all 375ms ease-in-out;

	li {
	position: relative;
    float: left;
    width: 96%;
    border-bottom:1px solid #E0E0E0;
    background-color: #F5F5F5;
    list-style-type: none;
    padding: 10px 2%;
    margin: 0px;  
    transition: all 275ms ease-in-out;
    display: block;
    cursor:pointer;
		
		&:last-child {
        border-radius: 3px;
        border-bottom:0px; 

        }
         &:hover {
		background-color: #EEEEEE;
		 } 
     }

   .active {
   background-color: #EEEEEE;
   }

}

/* etiqueta <p> con la opcion selecionada  */
.selecionado_opcion {
    padding: 20px 2%;
    width: 96%;
    display: block;
    margin: 0px;
    cursor: pointer;
}


            
          
!
            
              window.onload = function(){
  crear_select();
}

function isMobileDevice() {
    return (typeof window.orientation !== "undefined") || (navigator.userAgent.indexOf('IEMobile') !== -1);
};

 
var li = new Array();
function crear_select(){
var div_cont_select = document.querySelectorAll("[data-mate-select='active']");
var select_ = '';
for (var e = 0; e < div_cont_select.length; e++) {
div_cont_select[e].setAttribute('data-indx-select',e);
div_cont_select[e].setAttribute('data-selec-open','false');
var ul_cont = document.querySelectorAll("[data-indx-select='"+e+"'] > .cont_list_select_mate > ul");
 select_ = document.querySelectorAll("[data-indx-select='"+e+"'] >select")[0];
 if (isMobileDevice()) { 
select_.addEventListener('change', function () {
 _select_option(select_.selectedIndex,e);
});
 }
var select_optiones = select_.options;
document.querySelectorAll("[data-indx-select='"+e+"']  > .selecionado_opcion ")[0].setAttribute('data-n-select',e);
document.querySelectorAll("[data-indx-select='"+e+"']  > .icon_select_mate ")[0].setAttribute('data-n-select',e);
for (var i = 0; i < select_optiones.length; i++) {
li[i] = document.createElement('li');
if (select_optiones[i].selected == true || select_.value == select_optiones[i].innerHTML ) {
li[i].className = 'active';
document.querySelector("[data-indx-select='"+e+"']  > .selecionado_opcion ").innerHTML = select_optiones[i].innerHTML;
};
li[i].setAttribute('data-index',i);
li[i].setAttribute('data-selec-index',e);
// funcion click al selecionar 
li[i].addEventListener( 'click', function(){  _select_option(this.getAttribute('data-index'),this.getAttribute('data-selec-index')); });

li[i].innerHTML = select_optiones[i].innerHTML;
ul_cont[0].appendChild(li[i]);

    }; // Fin For select_optiones
  }; // fin for divs_cont_select
} // Fin Function 



var cont_slc = 0;
function open_select(idx){
var idx1 =  idx.getAttribute('data-n-select');
  var ul_cont_li = document.querySelectorAll("[data-indx-select='"+idx1+"'] .cont_select_int > li");
var hg = 0;
var slect_open = document.querySelectorAll("[data-indx-select='"+idx1+"']")[0].getAttribute('data-selec-open');
var slect_element_open = document.querySelectorAll("[data-indx-select='"+idx1+"'] select")[0];
 if (isMobileDevice()) { 
  if (window.document.createEvent) { // All
  var evt = window.document.createEvent("MouseEvents");
  evt.initMouseEvent("mousedown", false, true, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null);
	slect_element_open.dispatchEvent(evt);
} else if (slect_element_open.fireEvent) { // IE
  slect_element_open.fireEvent("onmousedown");
}else {
  slect_element_open.click();
}
}else {

  
  for (var i = 0; i < ul_cont_li.length; i++) {
hg += ul_cont_li[i].offsetHeight;
}; 
 if (slect_open == 'false') {  
 document.querySelectorAll("[data-indx-select='"+idx1+"']")[0].setAttribute('data-selec-open','true');
 document.querySelectorAll("[data-indx-select='"+idx1+"'] > .cont_list_select_mate > ul")[0].style.height = hg+"px";
 document.querySelectorAll("[data-indx-select='"+idx1+"'] > .icon_select_mate")[0].style.transform = 'rotate(180deg)';
}else{
 document.querySelectorAll("[data-indx-select='"+idx1+"']")[0].setAttribute('data-selec-open','false');
 document.querySelectorAll("[data-indx-select='"+idx1+"'] > .icon_select_mate")[0].style.transform = 'rotate(0deg)';
 document.querySelectorAll("[data-indx-select='"+idx1+"'] > .cont_list_select_mate > ul")[0].style.height = "0px";
 }
}

} // fin function open_select

function salir_select(indx){
var select_ = document.querySelectorAll("[data-indx-select='"+indx+"'] > select")[0];
 document.querySelectorAll("[data-indx-select='"+indx+"'] > .cont_list_select_mate > ul")[0].style.height = "0px";
document.querySelector("[data-indx-select='"+indx+"'] > .icon_select_mate").style.transform = 'rotate(0deg)';
 document.querySelectorAll("[data-indx-select='"+indx+"']")[0].setAttribute('data-selec-open','false');
}


function _select_option(indx,selc){
 if (isMobileDevice()) { 
selc = selc -1;
}
    var select_ = document.querySelectorAll("[data-indx-select='"+selc+"'] > select")[0];

  var li_s = document.querySelectorAll("[data-indx-select='"+selc+"'] .cont_select_int > li");
  var p_act = document.querySelectorAll("[data-indx-select='"+selc+"'] > .selecionado_opcion")[0].innerHTML = li_s[indx].innerHTML;
var select_optiones = document.querySelectorAll("[data-indx-select='"+selc+"'] > select > option");
for (var i = 0; i < li_s.length; i++) {
if (li_s[i].className == 'active') {
li_s[i].className = '';
};
li_s[indx].className = 'active';

};
select_optiones[indx].selected = true;
  select_.selectedIndex = indx;
  select_.onchange();
  salir_select(selc); 
}


            
          
!
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