Bootstrap Snippet Custom Select dropdown using HTML CSS Bootstrap Javascript

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<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/js/bootstrap.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<!------ Include the above in your HEAD tag ---------->
<div class="container">
    <div class="row">
        <div class="col-md-12">
            <form>
                <div class="form-group ">
                    <label for="HowToKnow"> How did you come to know about </label>
                   <div class="customselect">
                    <select class="form-control clgfocus">
                        <option value="">Select</option>
                        <option value="Newspaper">Newspaper</option>
                        <option value="Teacher">Teacher</option>
                        <option value="Friends/Relatives">Friends/Relatives</option>
                        <option value="Others">Others</option>
                    </select>
                    </div>
                    <span class="focus-border"></span>
                </div>
            </form>
        </div>
    </div>
</div>
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/*the container must be positioned relative:*/
.clgfocus{
    border: 0; padding: 7px 0; border-bottom: 1px solid #f00;
}
.clgfocus ~ .focus-border{position: absolute; left: 50%; width: 0; height: 2px; background-color: #9c27b0; transition: 0.4s;}
.clgfocus:focus ~ .focus-border{width: 95%;transition: 0.4s;left: 0;right: 0;margin: 0 auto;}
.customselect {
  position: relative;
}
.customselect select {
  display: none; /*hide original SELECT element:*/
}
.select-selected {
  background-color: transparent;
}
/*style the arrow inside the select element:*/
.select-selected:after {
  position: absolute;
  content: "";
  right: 10px;
  width: 0;
  height: 0;
  border: 6px solid transparent;
  border-color: #962bd8 transparent transparent transparent;
}
/*point the arrow upwards when the select box is open (active):*/
.select-selected.select-arrow-active:after {
  border-color: transparent transparent #962bd8 transparent;
}
/*style the items (options), including the selected item:*/
.select-items div,.select-selected {
  color: #555555;
  padding: 6px 0px;
  border: 1px solid transparent;
  border-color: transparent transparent rgba(0, 0, 0, 0.1) transparent;
  cursor: pointer;
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/* Custom Select js */
    var x, i, j, selElmnt, a, b, c;
    x = document.getElementsByClassName("customselect");  /*look for any elements with the class "customselect":*/
    
    for (i = 0; i < x.length; i++) {
        selElmnt = x[i].getElementsByTagName("select")[0];
        a = document.createElement("DIV");  /*for each element, create a new DIV that will act as the selected item:*/
        a.setAttribute("class", "select-selected");
        a.innerHTML = selElmnt.options[selElmnt.selectedIndex].innerHTML;
        x[i].appendChild(a);
        b = document.createElement("DIV"); /*for each element, create a new DIV that will contain the option list:*/
        b.setAttribute("class", "select-items select-hide");
        for (j = 0; j < selElmnt.length; j++) {
            c = document.createElement("DIV"); /*for each option in the original select element, create a new DIV that will act as an option item:*/
            c.innerHTML = selElmnt.options[j].innerHTML;
            c.addEventListener("click", function (e) {
                /*when an item is clicked, update the original select box, and the selected item:*/
                var y, i, k, s, h;
                s = this.parentNode.parentNode.getElementsByTagName("select")[0];
                h = this.parentNode.previousSibling;
                for (i = 0; i < s.length; i++) {
                    if (s.options[i].innerHTML == this.innerHTML) {
                        s.selectedIndex = i;
                        h.innerHTML = this.innerHTML;
                        y = this.parentNode.getElementsByClassName("same-as-selected");
                        for (k = 0; k < y.length; k++) {
                            y[k].removeAttribute("class");
                        }
                        this.setAttribute("class", "same-as-selected");
                        break;
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"Custom Select dropdown"
Bootstrap 3.3.0 Snippet by ravindra93

Related: See More

Questions / Comments:

"Custom Select dropdown" Bootstrap 3.3.0 Snippet by ravindra93

Related: See More

Questions / Comments:

"Custom Select dropdown"
Bootstrap 3.3.0 Snippet by ravindra93