JSFiddle - React, Tailwind, and code Playground

by Eva Nebko

HTML

<div id="menu-holder">
  <div id="menu">
    <div id="line-holder">
      <div id="line"></div>
    </div>
    <div id="circle1"></div>
    <div id="circle2"></div>
    <div id="circle3"></div>
  </div>
</div>

CSS

.transition-slow{
  -webkit-transition-duration: 0.8s;
  -moz-transition-duration: 0.8s;
  -o-transition-duration: 0.8s;
  transition-duration: 0.8s; 
}
#menu-holder{
  position: fixed;
  bottom: 0px;
  width: 100%;
  height: 70px;
  background-color: rgba(0,0,0,0.8);
}
#menu{
  height: 50px;
  width: 800px;
  margin: 10px auto;
}
#line-holder{
  position: absolute;
  top: 35px;
  height: 2px;
  width: 800px;
  background-color: rgb(198, 198, 198);
}
#line{
  width: 0;
  height: 2px;
  background: rgba(255,175,75,1);
  background: -moz-linear-gradient(left, rgba(255,175,75,1) 0%, rgba(255,10,59,1) 100%);
  background: -webkit-gradient(left top, right top, color-stop(0%, rgba(255,175,75,1)), color-stop(100%, rgba(255,10,59,1)));
  background: -webkit-linear-gradient(left, rgba(255,175,75,1) 0%, rgba(255,10,59,1) 100%);
  background: -o-linear-gradient(left, rgba(255,175,75,1) 0%, rgba(255,10,59,1) 100%);
  background: -ms-linear-gradient(left, rgba(255,175,75,1) 0%, rgba(255,10,59,1) 100%);
  background: linear-gradient(to right, rgba(255,175,75,1) 0%, rgba(255,10,59,1) 100%);
  filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#ffaf4b', endColorstr='#ff0a3b', GradientType=1 );
}
#circle1{
  position: relative;
  top: 13px;
  left: 100px;
  height: 20px;
  width: 20px;
  border-radius: 15px;
  border: 3px solid #F0903A;
  background-color: white;
  float: left;
}
#circle2{
  position: relative;
  top: 13px;
  left: 200px;
  height: 20px;
  width: 20px;
  border-radius: 15px;
  border: 3px solid #F0903A;
  background-color: white;
  float: left;
}
#circle3{
  position: relative;
  top: 13px;
  left: 350px;
  height: 20px;
  width: 20px;
  border-radius: 15px;
  border: 3px solid #F0903A;
  background-color: white;
}

JavaScript

$(document).ready(function(){
    $('#circle1').click(function(){
      $('#line').css('width','101px').addClass('transition-slow');
      
    });
    
    $('#circle2').click(function(){
      $('#line').css('width','225px').addClass('transition-slow');
    });
    $('#circle3').click(function(){
      $('#line').css('width','350px').addClass('transition-slow');
    });

  
   if ($('#line').width() = 100) {
      alert('something should happen with button');
    }
  
});