.section-intro__title .h3 b{display:inline-block;position:relative}.section-intro__title .h3 b:after{background-color:#97d9e5;bottom:1px;content:"";display:block;height:15px;left:0;position:absolute;width:100%;z-index:-1}.txt--dark .section-intro__title .h3 b:after{background-color:#4794a2}