JSFiddle - React, Tailwind, and code Playground

HTML

<body>
        <textarea name="saytext" id="saytext" rows="8" cols="40"></textarea>
    <div class="smile-bg">
        <ul class="simle-box">
            <li><a class="smile0" href="#"></a></li>
            <li><a class="smile1" href="#"></a></li>
            <li><a class="smile2" href="#"></a></li>
            <li><a class="smile3" href="#"></a></li>
            <li><a class="smile4" href="#"></a></li>
            <li><a class="smile5" href="#"></a></li>
            <li><a class="smile6" href="#"></a></li>
            <li><a class="smile7" href="#"></a></li>
            <li><a class="smile8" href="#"></a></li>
            <li><a class="smile9" href="#"></a></li>
            <li><a class="smile10" href="#"></a></li>
            <li><a class="smile11" href="#"></a></li>
            <li><a class="smile12" href="#"></a></li>
            <li><a class="smile13" href="#"></a></li>
            <li><a class="smile14" href="#"></a></li>
            <li><a class="smile15" href="#"></a></li>
            <li><a class="smile16" href="#"></a></li>
            <li><a class="smile17" href="#"></a></li>
            <li><a class="smile18" href="#"></a></li>
            <li><a class="smile19" href="#"></a></li>
            <li><a class="smile20" href="#"></a></li>
            <li><a class="smile21" href="#"></a></li>
            <li><a class="smile22" href="#"></a></li>
            <li><a class="smile23" href="#"></a></li>
            <li><a class="smile24" href="#"></a></li>
            <li><a class="smile25" href="#"></a></li>
            <li><a class="smile26" href="#"></a></li>
            <li><a class="smile27" href="#"></a></li>
            <li><a class="smile28" href="#"></a></li>
            <li><a class="smile29" href="#"></a></li>
            <li><a class="smile30" href="#"></a></li>
            <li><a class="smile31" href="#"></a></li>
            <li><a class="smile32" href="#"></a></li>
            <li><a class="smile33" href="#"></a></li>
            <li><a...

CSS

li {
  list-style: none;
}

ul {
  margin: 0;
  height: 0;
}

a {
  color: #5188a6;
  text-decoration: none;
  cursor: pointer;
}

.smile-bg {
  top: 34px;
  left: 0;
  clear: both;
  width: 386px;
  height: 176px;
  padding: 12px;
  background-color: #f5f5f5;
  border: 1px solid #dcdcdc;
}

.simle-box {
  width: 386px;
  height: 140px;
  padding: 0px;
}

.simle-box li {
  width: 36px;
  height: 36px;
  float: left;
  margin: -1px 0 0 -1px;
  padding: 0;
  border-bottom: 0;
  background: blue;
}

.simle-box .smile1 {
  background-position: -34px 0;
}

.simle-box li a {
  background: url('http://www.smzdm.com/resources/public/img/static.gif') no-repeat;
  width: 34px;
  height: 34px;
  display: block;
  border: 1px solid #dcdcdc;
  background-color: #fff;
}

.smile-page {
  text-align: right;
  width: 384px;
  line-height: 24px;
  padding-top: 12px;
}

.smile-page a {
  display: inline-block;
  font-size: 12px;
  width: 24px;
  height: 24px;
  margin-left: 10px;
  text-align: center;
  border-radius: 2px;
}

.current {
  background-color: #f04848;
  color: #fff;
  font-weight: bold;
}