.custom-select select{appearance:none;background-color:#fff;border:1px solid #ddd;border-radius:5px;width:100%;margin-bottom:10px;padding:10px}.author-box{background-color:#fff;border:1px solid #ddd;border-radius:3px;margin-bottom:10px}.corresponding-author{border:1px solid #ffdc60}.postbox__contact-input input,.postbox__contact-textarea textarea{border:1px solid #ddd;border-radius:5px;width:100%;margin-bottom:10px;padding:10px}.author-btn{cursor:pointer;border:none;border-radius:5px;justify-content:center;align-items:center;width:38px;height:38px;margin-left:5px;margin-right:5px;font-size:18px;display:flex}.btn-success{color:#fff;background-color:#81c784}.btn-danger{color:#fff;background-color:#e57373}.author-header{border-radius:3px;justify-content:space-between;align-items:center;margin-bottom:10px;padding:10px;display:flex}.corresponding-author-header{color:#ffdc60;background-color:#ffdc60}.non-corresponding-author-header{color:#fff;background-color:#fff8df}.corresponding-label{color:#000;align-items:center;margin-left:10px;display:flex}.corresponding-label input{accent-color:#000;margin-right:5px}.postbox__contact-input{width:100%}.main-btn-sm .loading-spinner{vertical-align:middle;border:4px solid #f3f3f3;border-top-color:#000;border-radius:50%;width:24px;height:24px;margin-right:5px;animation:1s linear infinite spin;display:inline-block}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.success-message{text-align:center;color:#333;background-color:#ffdc60;border-radius:5px;margin-bottom:20px;padding:10px 20px;font-size:16px}