For websites with a dark theme, you can use the pricing panels according to the website theme. This pricing panel has also been prepared in this post. The buttons in each panel have a different color and have a shadow corresponding to the color of the button, which creates a light effect. The size of the buttons gets a little bigger during the hover.


HTML
<!-- This script got from www.devanswer.com -->
<section>
  <div class="rt-container">
    <div class="col-rt-12">
      <div class="Scriptcontent">
        <div class="container">
          <div class="top">
            <h1>Plans & Pricing</h1>
            <div class="toggle-btn">
            <span style="margin: 0.8em;">Annually</span>
            <label class="switch">
              <input type="checkbox" id="checbox" onclick="check()" ; />
              <span class="slider round"></span>
            </label>
            <span style="margin: 0.8em;">Monthly</span></div>
          </div>
          <div class="package-container">
            <div class="packages">
              <h1>Basic</h1>
              <h2 class="text1">&dollar;9.99</h2>
              <h2 class="text2">&dollar;119.99</h2>
              <ul class="list">
                <li class="first">2000 Subscribers</li>
                <li>12,000 Emails/month</li>
                <li>Multi-User Accounts</li>
                <li>Email Support</li>
              </ul>
            <a href="#" class="button button1">Start Now</a>
          </div>
          <div class="packages">
            <h1>Professional</h1>
            <h2 class="text1">&dollar;19.99</h2>
            <h2 class="text2">&dollar;239.99</h2>
            <ul class="list">
              <li class="first">Basic +</li>
              <li>Landing Pages</li>
              <li>Pop-up Forms</li>
              <li>Premium Support</li>
            </ul>
            <a href="#" class="button button2">Start Now</a>
          </div>
          <div class="packages">
            <h1>Master</h1>
            <h2 class="text1">&dollar;29.99</h2>
            <h2 class="text2">&dollar;359.99</h2>
            <ul class="list">
              <li class="first">Professional +</li>
              <li>Marketing Automation</li>
              <li>Instagram Ads</li>
              <li>Facebook Ads</li>
            </ul>
            <a href="#" class="button button3">Start Now</a>
          </div>
        </div>
      </div>
<script>
function check() {
  var checkBox = document.getElementById("checbox");
  var text1 = document.getElementsByClassName("text1");
  var text2 = document.getElementsByClassName("text2");
  for (var i = 0; i < text1.length; i++) {
    if (checkBox.checked == true) {
      text1[i].style.display = "block";
      text2[i].style.display = "none";
    } else if (checkBox.checked == false) {
      text1[i].style.display = "none";
      text2[i].style.display = "block";
    }
  }
}
check();                              
</script>
    </div>
	</div>
</div>
</section><div id="bcl"><a style="font-size:8pt;text-decoration:none;" href="http://www.devanswer.com">Developers Answer</a></div>
                        

CSS
@import url('https://fonts.googleapis.com/css?family=Raleway:400,500,600,700,800,900');
@import url("https://fonts.googleapis.com/css2?family=Play:wght@400;700&display=swap");
html {
  box-sizing: border-box;
}
*, *:before, *:after {
  box-sizing: inherit;
}
article, header, section, aside, details, figcaption, figure, footer, header, hgroup, main, nav, section, summary {
    display: block;
}
body {
    background:#f0e0e0 none repeat scroll 0 0;
    color: #222;
    font-size: 100%;
    line-height: 24px;
    margin: 0;
	padding:0;
	font-family: "Raleway",sans-serif;
}
a{
	font-family: "Raleway",sans-serif;
	text-decoration: none;
	outline: none;
}
a:hover, a:focus {
	color: #373e18;
}
section {
    float: left;
    width: 100%;
	padding-bottom:3em;
}
h2 {
    color: #1a0e0e;
    font-size: 26px;
    font-weight: 700;
    margin: 0;
    line-height: normal;
	text-transform:uppercase;
}
h2 span {
    display: block;
    padding: 0;
    font-size: 18px;
    opacity: 0.7;
    margin-top: 5px;
	text-transform:uppercase;
}
#float-right{
	float:right;	
}
.ScriptTop {
    background: #fff none repeat scroll 0 0;
    float: left;
    font-size: 0.69em;
    font-weight: 600;
    line-height: 2.2;
    padding: 12px 0;
    text-transform: uppercase;
    width: 100%;
}
.ScriptTop ul {
    margin: 24px 0;
    padding: 0;
    text-align: left;
}
.ScriptTop li{
	list-style:none;	
	display:inline-block;
}
.ScriptTop li a {
    background: #6a4aed none repeat scroll 0 0;
    color: #fff;
    display: inline-block;
    font-size: 14px;
    font-weight: 600;
    padding: 5px 18px;
    text-decoration: none;
    text-transform: capitalize;
}
.ScriptTop li a:hover{
	background:#000;
	color:#fff;
}
.ScriptHeader {
    float: left;
    width: 100%;
    padding: 2em 0;
}
.rt-heading {
    margin: 0 auto;
	text-align:center;
}
.Scriptcontent{
	line-height:28px;	
}
.ScriptHeader h1{
	font-family: "brandon-grotesque", "Brandon Grotesque", "Source Sans Pro", "Segoe UI", Frutiger, "Frutiger Linotype", "Dejavu Sans", "Helvetica Neue", Arial, sans-serif;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
    color: #6a4aed;
    font-size: 26px;
    font-weight: 700;
    margin: 0;
    line-height: normal;
}
.ScriptHeader h2 {
    color: #312c8f;
    font-size: 20px;
    font-weight: 400;
    margin: 5px 0 0;
    line-height: normal;

}
.ScriptHeader h1 span {
    display: block;
    padding: 0;
    font-size: 22px;
    opacity: 0.7;
    margin-top: 5px;
}
.ScriptHeader span {
    display: block;
    padding: 0;
    font-size: 22px;
    opacity: 0.7;
    margin-top: 5px;
}
.rt-container {
	margin: 0 auto;
	padding-left:12px;
	padding-right:12px;
}
.rt-row:before, .rt-row:after {
  display: table;
  line-height: 0;
  content: "";
}
.rt-row:after {
  clear: both;
}
[class^="col-rt-"] {
  box-sizing: border-box;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  -o-box-sizing: border-box;
  -ms-box-sizing: border-box;
  padding: 0 15px;
  min-height: 1px;
  position: relative;
}
@media (min-width: 768px) {
  .rt-container {
    width: 750px;
  }
  [class^="col-rt-"] {
    float: left;
    width: 49.9999999999%;
  }
  .col-rt-6, .col-rt-12 {
    width: 100%;
  } 
}
@media (min-width: 1200px) {
	.rt-container {
		width: 1170px;
	}
	.col-rt-1 {
		width:16.6%;
	}
	.col-rt-2 {
		width:30.33%;
	}
	.col-rt-3 {
		width:50%;
	}
	.col-rt-4 {
		width: 67.664%;
	}
	.col-rt-5 {
		width: 83.33%;
	}
}
@media only screen and (min-width:240px) and (max-width: 768px){
	 .ScriptTop h1, .ScriptTop ul {
		text-align: center;
	}
	.ScriptTop h1{
		margin-top:0;
		margin-bottom:15px;
	}
	.ScriptTop ul{
		 margin-top:12px;		
	}
	.ScriptHeader h1,
	.ScriptHeader h2, 
	.scriptnav ul{
		text-align:center;	
	}
	.scriptnav ul{
		 margin-top:12px;		
	}
	#float-right{
		float:none;	
	}	
}
body {
  background-color: #f4f4f4;
  font-family: "Play", sans-serif;
}
.container {
  width: 100%;
}
.packages {
  margin: 20px;
  width: 300px;
  padding-bottom: 1.5em;
  height: 100%;
  background-color: #1e2321;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  border-radius: 20px;
  box-shadow: 0 19px 38px rgba(30, 35, 33, 1), 0 15px 12px rgba(30, 35, 33, 0.2);
  flex-wrap: wrap;
  color: #f4f4f4;
}
h1,
h2 {
  font-size: 2.2em;
}
.text1,
.text2{
    color: #fff;
}
.list li {
  font-size: 20px;
  list-style: none;
  border-bottom: 1px solid #f4f4f4;
  padding-inline-start: 0;
  border-width: 1px;
  padding: 10px;
}
.first {
  margin-top: 40px;
  border-top: 1px solid #f4f4f4;
}
.list {
  width: 80%;
}
ol,
ul {
  padding: 0;
}
.top {
  display: flex;
  flex-direction: column;
  align-items: center;
}
input,
label {
  display: inline-block;
  vertical-align: middle;
  margin: 10px 0;
}
.button {
  padding: 10px 30px;
  text-decoration: none;
  font-size: 1.4em;
  margin: 15px 15px;
  border-radius: 50px;
  color: #f4f4f4;
  transition: all 0.3s ease 0s;
}
.button:hover {
  transform: scale(1.2);
}
.button1 {
  background-color: #00cc99;
  box-shadow: 0 0 10px 0 #00cc99 inset, 0 0 20px 2px #00cc99;
}
.button2 {
  background-color: #ff007c;
  box-shadow: 0 0 10px 0 #ff007c inset, 0 0 20px 2px #ff007c;
}
.button3 {
  background-color: #ffae42;
  box-shadow: 0 0 10px 0 #ffae42 inset, 0 0 20px 2px #ffae42;
}
.switch {
  position: relative;
  display: inline-block;
  width: 60px;
  height: 34px;
}
.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}
.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #1e2321;
  -webkit-transition: 0.4s;
  box-shadow: 2px 6px 25px #1e2321;
  transform: translate(0px, 0px);
  transition: 0.6s ease transform, 0.6s box-shadow;
}
.slider:before {
  position: absolute;
  content: "";
  height: 26px;
  width: 26px;
  left: 4px;
  bottom: 4px;
  background-color: white;
  -webkit-transition: 0.4s;
  transition: 0.4s;
}
input:checked + .slider {
  background-color: #50bfe6;
}
input:focus + .slider {
  box-shadow: 0 0 1px #50bfe6;
}
input:checked + .slider:before {
  -webkit-transform: translateX(26px);
  -ms-transform: translateX(26px);
  transform: translateX(26px);
}
.slider.round {
  border-radius: 34px;
}
.slider.round:before {
  border-radius: 50%;
}
.package-container {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
}