Change the background color of 2 cards if the numbers match

Sure.

Here you go.

  1. create a card with 2 values, here I’m counting the 'Total Won" and “Total Contact”

  2. choose one of the cards from the library or create your own design. In my case I chose a design and then copied it so there are 2 of them. Or just copy/paste this into your template. Remember to update the ‘totalWon’ and totalContact based on the values ou set in step 1.

{{#each records}}

<div class="card-style-custom-2 card-custom-2-primary col col-md-6">
    	<div class="card-custom-2-wrap">
    		<div class="card-custom-2-inner">
				<span class="card-custom-2-icon"><i class="far fa-users"></i></span>
				<span class="card-custom-2-value"><b>{{totalWon}}</b></span>
			</div>
			<div class="card-custom-2-footer">
				<span>Total Won</span>
			
				
			</div>
		</div>
</div>

<div class="card-style-custom-2 card-custom-2-primary col col-md-6">
    	<div class="card-custom-2-wrap">
    		<div class="card-custom-2-inner">
				<span class="card-custom-2-icon"><i class="far fa-users"></i></span>
				<span class="card-custom-2-value"><b>{{totalContact}}</b></span>
			</div>
			<div class="card-custom-2-footer">
				<span>Total Contact</span>
			
			</div>
		</div>
    </div>
{{/each}}
  1. Let’s add some custom CSS code in the CSS tab:

(if you copied and pasted the code above, make sure to copy/paste this whole CSS, otherwise, just the top class “green-background” is important.

.green-background {
    background: green !important; 
    color: white !important; 
}

.card-style-custom-2{
    margin-top: 2rem;
    margin-bottom: 2rem;
}
.card-style-custom-2 .card-custom-2-header {
    background: #fff;
    margin: 5px 0;
    padding: 5px 10px;
    color:#333333;
}
.card-style-custom-2 .card-custom-2-inner{
    text-align: center !important;
    background: #fff;
    border-bottom: 7px solid #6993ff;
    padding: 10px;
    font-size: 25px;
}
.card-style-custom-2 .card-custom-2-icon{
    display: block;
    font-size: 37px;
    padding-bottom: 1rem;
}
.card-style-2 .card-custom-2-value, .card-style-2 .card-custom-2-suffix{
    font-size: 18px;
}
.card-style-custom-2 .card-custom-2-footer {
    padding-top: 2rem;
    padding-bottom: 2rem;
    margin-top: 0px;
    padding: 15px 10px;
}


/* card-light-primary */
.card-custom-2-primary .card-custom-2-wrap{
    border: 1px solid #e1e9ff;   
}
.card-custom-2-primary .card-custom-2-inner{
    border-bottom: 7px solid #6993ff !important;
}
.card-custom-2-primary .card-custom-2-footer{
    background:#e1e9ff;
    color:rgb(101, 86, 86);
}
.card-custom-2-primary .card-custom-2-icon{
    color:#6993ff !important;
}
.card-custom-2-primary .card-custom-2-value{
    color:#6993ff;
}
.card-custom-2-primary .card-custom-2-suffix{
    color:#6993ff;
}
  1. Now we need to add a custom class but only if certain condition is met:

In your code find this line:

<div class="card-custom-2-footer">

and replace it with this:

<div class="card-custom-2-footer {{#is totalWon totalContact}} green-background{{/is}}">