JSFiddle - React, Tailwind, and code Playground

by carlhong

HTML

<div class="main">
  <div class="form">
    <div class="wrapper">
      <ul>
        <li>
          <div class="label">
            <div class="location">
              <div class="btn">
                show picker
              </div>
            </div>
          </div>
        </li>
      </ul>
    </div>
  </div>
</div>
<div class="header">
  I am header
</div>

CSS

* {
  box-sizing: border-box;
}
body {
  background: #f5f7fa;
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  margin: 0;
}

.main {
  position: relative;
  width: 100%;
  height: 100%;
  overflow-x: hidden;
  overflow-y: auto;
}

.header {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  padding-left: .5rem;
  user-select: none;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 0.75rem;
  color: #1f2d3d;
  font-weight: normal;
  text-align: left;
  background: #ffffff;
  height: 2.5rem;
  line-height: 2.5rem;
}

.form {
  top: 2.5rem;
  position: absolute;
  overflow-x: hidden;
  width: 100%;
  color: #1f2d3d;
  padding: 0.25rem 0.55rem 2.5rem;
  padding-bottom: 0.25rem;
  left: 0;
  right: 0;
  bottom: 0;
}

.wrapper {
  bottom: 0;
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  overflow: auto;
  padding: 0.25rem 0.55rem;
  -webkit-overflow-scrolling: touch;
}

ul {
  margin: 0;
  padding: 0;
}

li {
  padding: 0.3rem 0;
  list-style-type: none;
}

.location {
  position: relative;
  /* overflow: hidden; */
}

.btn {
  text-align: center;
  color: #248af9;
  margin-top: 0.5rem;
  width: 100%;
  height: 2rem;
  line-height: 2rem;
  background-color: #ffffff;
  border: 1px dashed #e5e5e5;
}

.picker {
  z-index: 100;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: #ffffff;
}

.bar {
  height: 2.2rem;
}

.picker-cancel {
  color: #248af9;
  line-height: 2rem;
  position: absolute;
  top: 0;
  left: 0;
  width: 3rem;
  height: 2.2rem;
  border: none;
  margin: 0;
  padding: 0;
  outline: none;
  background-color: #ffffff;
}

.picker-ok {
  color: #248af9;
  line-height: 2rem;
  position: absolute;
  top: 0;
  right: 0;
  width: 3rem;
  height: 2.2rem;
  border: none;
  margin: 0;
  padding: 0;
  outline: none;
  background-color: #ffffff;
}

.location-search {
  position: absolute;
  top: 0.2rem;
  left: 3rem;
  right: 3rem;
  line-height: 1.4rem;
}

.section {
 ...

JavaScript

var $picker = $("<div class=\"picker\">" +
    "<div class=\"bar\">" +
    "<button class=\"picker-cancel\">取消</button>" +
    "<button class=\"picker-ok\">确定</button>" +
    "<input class=\"location-search\" id=\"tip-input\" placeholder=\"搜索\">" +
    "</div>" +
    "<div class=\"section\"></div>" +
    "</div>");
$(".btn").click(function() {
    $picker.appendTo($(".location"));
  	$(".picker-cancel").click(function() {
    	$picker.detach();
    });
});