Css animation, how to execute every two seconds? Ask for advice

.item{ animation: gelatine 0.5s infinite}
@-webkit-keyframes gelatine {
  from, to {
    -webkit-transform: scale(1, 1);
    transform: scale(1, 1);
  }

  25% {
    -webkit-transform: scale(0.9, 1.1);
    transform: scale(0.9, 1.1);
  }

  50% {
    -webkit-transform: scale(1.1, 0.9);
    transform: scale(1.1, 0.9);
  }

  75% {
    -webkit-transform: scale(0.95, 1.05);
    transform: scale(0.95, 1.05);
  }
}
Apr.29,2022

set the animation time to 2.5s, then leave the first 80% still, and the last 20% animate

@keyframes gelatine {
    80%{
        -webkit-transform: scale(1, 1);
        transform: scale(1, 1);}
    85%{
        -webkit-transform: scale(0.9, 1.1);
        transform: scale(0.9, 1.1);
    }
    90%{
        -webkit-transform: scale(1, 1);
        transform: scale(1, 1);
    }
    95%{
        -webkit-transform: scale(1.1, 0.9);
        transform: scale(1.1, 0.9);
    }
}
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b3abdd-2c245.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3abdd-2c245.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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