In Airtech, there is a special kind of Service block.

Due to their special design, the text length is limited, if your desired text is long, Please enter below css in wp-admin/appearance/customise/additionalCSS box.
.r_service_item h4 {
position: relative;
background: #004A9F;
padding: 12px;
border-radius: 49px;
top: -25px;
}
.r_service_item h4:before { display: none; }
Adding above styles, will make it look like below. Feel free to change values to suit your need, like Background color code or border radius etc in above css code.
