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                <button class="dalga">DALGA EFEKTi</button>
<a href="#" class="dalga">DALGA EFEKTİ</a>



/* Butonlar */
.dalga{color: #fff;font-family: 'Roboto', sans-serif;border: 1px solid #333;background-color: #333;cursor:pointer;font-size: 14px;padding: 20px 30px;line-height:17px;text-decoration:none;position: relative;overflow: hidden;}
.dalga .daire {position: absolute;border-radius: 50%;background-color: #fff;width: 100px;height: 100px;transform: translate(-50%, -50%) scale(0);animation: buyut 0.6s ease-out;}

@keyframes buyut {
    to {
        transform: translate(-50%, -50%) scale(4);opacity: 0;


                const dalga = document.querySelectorAll('.dalga'); // dalga classına sahip tüm elemenlter

dalga.forEach(d => { //dalga classına sahip elementelerin hepsine uygulanacak şekilde döngü
	d.addEventListener('click', function(e) { // tıklama eventi
        // 1
		let x = e.clientX; // Yatay koordinatı alın
		let y = e.clientY; // Dikey koordinatı alın

        // 2
		let ustDalga =; // Yukarıdan uzaklığı
		let solDalga =; // Soldan uzaklığı

        // 3
		let xInside = x - solDalga; // İçeriden koordinat hesaplaması
		let yInside = y - ustDalga; // İçeriden koordinat hesaplaması

        let daire = document.createElement('span'); // span oluştur
        daire.classList.add('daire'); // daire classını spana ata = yInside + 'px'; // yukarıdan seçtiğimiz kadar boşluk = xInside + 'px'; // soldan seçtiğimiz kadar boşluk

        this.appendChild(daire); // dalga class elementinin içerisine yerleştir

        setTimeout(() => {
        }, 600); // 600 ms süre sonra eklenen daire spanını kaldır