CSS / HTML make text / element blink

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.blink_me {
  animation: blinker 2.4s linear infinite; font-weight: bold;
}
 
@keyframes blinker {  
  50% { opacity: 0; }
}
 

This simple CSS code can make a text / element blink, you just need to set the timer in seconds and provide the element that you want to blink with the .blink_me class.

Click for DEMO here.