JSFiddle - React, Tailwind, and code Playground

by mrjordy

HTML

<div class="seatsLeft">
  <div class="leftPane leftSection1 leftSectionOpen"> 
    <div><h3 class="leftPaneTitle">Find a Person</h3></div>
  </div>
  <div class="leftPane leftSection2"> 
    <div><h3 class="leftPaneTitle">Find a Person</h3></div>
  </div>
  <div class="leftPane leftSection3"> 
    <div><h3 class="leftPaneTitle">Find a Person</h3></div>
  </div>
</div>

CSS

.seatsLeft {
    width: 250px;
    border: 1px solid red;
    height: calc(100% - 9px);
    display: block;
    margin-top: -1px;
    margin-left: -1px;
    display: inline-block;
    vertical-align: top;
    position: absolute;
}
.leftPane {
  width: calc(100% - 4px);
  height: 60px;
  background: rgba(255,0,0,.4);
  cursor: pointer;
  margin: 2px;
  transition: .3s;
  overflow: hidden;
}
.leftSectionOpen {
  height: calc(100% - 128px);
}
h3.leftPaneTitle {
    font-size: 20px;
    font-family: kalinga;
    margin: 0;
    background: red;
    text-align: center;
    height: 60px;
    line-height: 60px;
    transition: .3s;
}
.leftSectionOpen > div > h3.leftPaneTitle {
    height: 30px;
    line-height: 30px;
}

JavaScript

$(document).ready(function() {
    $('.leftSection1').click(function() {
        $('.leftSection1').addClass('leftSectionOpen');
        $('.leftSection2').removeClass('leftSectionOpen');
        $('.leftSection3').removeClass('leftSectionOpen');
    });
    $('.leftSection2').click(function() {
        $('.leftSection2').addClass('leftSectionOpen');
        $('.leftSection1').removeClass('leftSectionOpen');
        $('.leftSection3').removeClass('leftSectionOpen');
    });
    $('.leftSection3').click(function() {
        $('.leftSection3').addClass('leftSectionOpen');
        $('.leftSection1').removeClass('leftSectionOpen');
        $('.leftSection2').removeClass('leftSectionOpen');
    });
});