body { background-color: #f1f1f1; font-family: 'Montserrat', sans-serif; } .card { margin: 0 auto; padding: 50px; display: block; max-width: 500px; width: 100%; text-align: center; background-color: #fff; border-radius: 12px; box-shadow: 0 10px 10px -5px #909090; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); } #countdown { font-size: 48px; }
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FYT

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var timeInSecs; var ticker; function startTimer(secs) { timeInSecs = parseInt(secs); ticker = setInterval("tick()", 1000); } function tick( ) { var secs = timeInSecs; if (secs > 0) { timeInSecs--; } else { clearInterval(ticker); startTimer(5*60); // 4 minutes in seconds } var days= Math.floor(secs/86400); secs %= 86400; var hours= Math.floor(secs/3600); secs %= 3600; var mins = Math.floor(secs/60); secs %= 60; var pretty = ( (days < 10 ) ? "0" : "" ) + days + ":" + ( (hours < 10 ) ? "0" : "" ) + hours + ":" + ( (mins < 10) ? "0" : "" ) + mins + ":" + ( (secs < 10) ? "0" : "" ) + secs; document.getElementById("countdown").innerHTML = pretty; } startTimer(5*60); // 4 minutes in seconds