Colour Box Behind Headings

I have attached a snap from other site
How to add colorful box behind every headings as shown in snap.
Please guide

Hi @tipcircle,

I hope you are well today and thank you for your question.

Could you please share me the page URL from your site where the headings are displaying so that i can help you style it?

Kind Regards,
Movin

You can try achieving this by adding the following CSS code in the Custom CSS option of the latest version of Sparkling theme on the below path.

Admin Area -> Appearance -> Customize -> Sparkling Options -> Other -> Custom CSS

.entry-content h1, .entry-content h2, .entry-content h3, .entry-content h4, .entry-content h5, .entry-content h6 {
    background: #4395C7;
    color: #fff;
    padding: 10px;
    border-left: 50px solid #4D474A;
}