.titre-underline span.underline-custom{position:relative;color:#4dd9d9;white-space:nowrap}.titre-underline span.underline-custom::after{content:"";position:absolute;bottom:-8px;left:0;width:100%;height:14px;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 300 12'%3E%3Cpath d='M2 8 Q75 2 150 7 Q225 12 298 5' stroke='%234dd9d9' stroke-width='3' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-size:100% 100%}