使用动画方向的替代值(你不需要这样添加任何keframes)。

备用 动画应该在每个循环中反转方向。当反向播放时，动画步骤将反向执行。此外，定时函数也反转;例如，在反向播放时，缓进动画将被缓出动画取代。用于确定它是偶数还是奇数迭代的计数从1开始。

CSS:

.waitingForConnection {
  animation: blinker 1.7s cubic-bezier(.5, 0, 1, 1) infinite alternate;  
}
@keyframes blinker { to { opacity: 0; } }

我已经删除了关键帧。如果它缺失，它将从元素上为动画属性(在本例中为不透明度)设置的值生成，或者如果您没有设置它(在本例中也没有)，则从默认值(不透明度为1)生成。

请不要只使用WebKit版本。在它后面也加一个没有前缀的。如果你只是想写更少的代码，使用速记。

.waitingForConnection { animation: blinker 1.7s cubic-bezier(.5, 0, 1, 1) infinite alternate; } @keyframes blinker { to { opacity: 0; } } .waitingForConnection2 { animation: blinker2 0.6s cubic-bezier(1, 0, 0, 1) infinite alternate; } @keyframes blinker2 { to { opacity: 0; } } .waitingForConnection3 { animation: blinker3 1s ease-in-out infinite alternate; } @keyframes blinker3 { to { opacity: 0; } } <div class="waitingForConnection">X</div> <div class="waitingForConnection2">Y</div> <div class="waitingForConnection3">Z</div>

或者，如果你不想在显示和隐藏之间逐渐过渡(例如，闪烁的文本光标)，你可以使用这样的东西:

/* Also use prefixes with @keyframes and animation to support current browsers */
@keyframes blinker {  
  from { visibility: visible }
  to { visibility: hidden }

  /* Alternatively you can do this:  
  0% { visibility: visible; }
  50% { visibility: hidden; }
  100% { visibility: visible; }
  if you don't want to use `alternate` */
}
.cursor {
  animation: blinker steps(1) 500ms infinite alternate;
}

每1s .游标将从可见变为隐藏。

如果CSS动画不受支持(例如在某些版本的Safari中)，你可以回退到这个简单的JS间隔:

(function(){
  var show = 'visible'; // state var toggled by interval
  var time = 500; // milliseconds between each interval

  setInterval(function() {
    // Toggle our visible state on each interval
    show = (show === 'hidden') ? 'visible' : 'hidden';

    // Get the cursor elements
    var cursors = document.getElementsByClassName('cursor');
    // We could do this outside the interval callback,
    // but then it wouldn't be kept in sync with the DOM

    // Loop through the cursor elements and update them to the current state
    for (var i = 0; i < cursors.length; i++) {
      cursors[i].style.visibility = show;
    }
  }, time);
})()

这种简单的JavaScript实际上是非常快的，在许多情况下甚至可能是一个比CSS更好的默认。值得注意的是，是大量的DOM调用导致JS动画变慢(例如JQuery的$.animate())。

它还有第二个优势，如果你稍后添加.cursor元素，它们仍然会与其他.cursor元素在同一时间动画，因为状态是共享的，据我所知，这在CSS中是不可能的。

这是每个人的好榜样。试一试

.blinking_live {
    height: 15px;
    width: 15px;
    border-radius: 15px;
    background: #58C03D;
    animation: blink-live 1s cubic-bezier(0, 0.2, 0.8, 1) infinite;
}

@keyframes blink-live{

    0% { opacity: 1.0; }
    50% { opacity: 0.0; }
    100% { opacity: 1.0; }
}


<div class="blinking_live"></div>

改变持续时间和不透明度以适应。

.blink_text { 
    -webkit-animation-name: blinker;
    -webkit-animation-duration: 3s;
    -webkit-animation-timing-function: linear;
    -webkit-animation-iteration-count: infinite;
    -moz-animation-name: blinker;
    -moz-animation-duration: 3s;
    -moz-animation-timing-function: linear;
    -moz-animation-iteration-count: infinite;
    animation-name: blinker;
    animation-duration: 3s;
    animation-timing-function: linear; 
    animation-iteration-count: infinite; color: red; 
} 

@-moz-keyframes blinker {
    0% { opacity: 1.0; }
    50% { opacity: 0.3; }
    100% { opacity: 1.0; } 
}

@-webkit-keyframes blinker { 
    0% { opacity: 1.0; }
    50% { opacity: 0.3; }
    100% { opacity: 1.0; } 
} 

@keyframes blinker { 
    0% { opacity: 1.0; } 
    50% { opacity: 0.3; } 
    100% { opacity: 1.0; } 
}

如果你想要平滑的动画，试试这个。

    .blink {
        animation: blinker 1s infinite;
    }
      
    @keyframes blinker {
        from { opacity: 1.0; }
        50% { opacity: 0.5; }
        to { opacity: 1.0; }
    }

    <span class="blink">I am blinking</span>

我使用class=blink对各自的元素进行处理

简单JS代码

// Blink
      setInterval(function()
        {

        setTimeout(function()
        {

        //$(".blink").css("color","rgba(0,0,0,0.1)"); // If you want simply black/white blink of text
        $(".blink").css("visibility","hidden"); // This is for Visibility of the element  


        },900);


        //$(".blink").css("color","rgba(0,0,0,1)");  // If you want simply black/white blink of text
        $(".blink").css("visibility","visible");  // This is for Visibility of the element

        },1000);