.discount{
            display: flex;
            justify-content: center;
            padding:15px;
            background-color: red;
        }
        .discount span:first-child{
            margin-right: 15px;
        }
        .discount span{
            color: white;
            font-size: 14px;
        }

<div class="discount">
            <span>YENİ YILA ÖZEL %25</span>
            <span>₺343,99</span>
        </div>