document.querySelectorAll('body.animated').forEach(element => { var animationDuration = 60; var randomDuration = Math.random() * animationDuration; element.style.animationDelay = -randomDuration + 's'; }) document.querySelectorAll('.animated-title').forEach(element => { var animationDuration = 60; var randomDuration = Math.random() * animationDuration; element.querySelectorAll('.text').forEach(text => { text.style.animationDelay = -randomDuration + 's'; } })