Masking - Show div only on top of certain div?

user_10800851 0
Viewed 296

I am trying to create an "eye blink" animation with HTML and CSS.

What I would want, is that when the eyes blink, the eyeballs are not showing.

As you can see from the code, the eyes consists of 4 elements.

Div "eyes" is the container where the eyes are.

Div "eye1" and "eye2".

Div "eyemask", that has the blinking effect.

Div "eyeball1" and "eyeball2". These should only show on top of the "eyemask", not on top of the "eye1" and "eye2".

Could someone help me to achieve this?

body {
  margin: 0px;
}

#container {
  position: absolute;
  z-index: 100;
  width: 300px;
  height: 300px;
  background: lightblue;
  display: flex;
  justify-content: center;
  align-items: center;
}

#eyes {
  position: absolute;
  z-index: 12;
  width: 120px;
  height: 100px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

#eye1,
#eye2 {
  z-index: 12;
}

#eye1,
#eye2,
#eyemask {
  position: absolute;
  width: 50px;
  height: 50px;
  background: #eee;
  display: flex;
  justify-content: center;
  align-items: center;
  clip-path: circle(50% at 50% 50%);
}

#eye2 {
  transform: translateX(60px);
}

#eyemask {
  background: #fff;
  animation-name: blink;
  animation-duration: 5s;
  animation-iteration-count: infinite;
}

@keyframes blink {
  0% {
    transform: scaleY(1);
  }
  20% {
    transform: scaleY(1);
  }
  30% {
    transform: scaleY(0);
  }
  40% {
    transform: scaleY(1);
  }
  100% {
    transform: scaleY(1);
  }
}

#eyeball1,
#eyeball2 {
  position: absolute;
  z-index: 11;
  width: 10px;
  height: 10px;
  background: #000;
  clip-path: circle(50% at 50% 50%);
}
<head>
  <link rel="stylesheet" type="text/css" href="Eyes.css">
</head>

<body>
  <div id="container">
    <div id="eyes">
      <div id="eye1">
        <div id="eyemask"></div>
        <div id="eyeball1"></div>
      </div>
      <div id="eye2">
        <div id="eyemask"></div>
        <div id="eyeball2"></div>
      </div>
    </div>
  </div>
</body>

Could someone here help me to achieve this?

clip-path css-animations css html
2 Answers

You can simplify your code like below and rely on a clip-path animation:

.eyes {
  padding:20px;
  background: lightblue;
  display: inline-flex;
}

.eyes span{
  width: 80px;
  height: 80px;
  background:grey;
  border-radius:50%;
  margin:10px;
  position:relative;
}
.eyes span:before {
  content:"";
  position:absolute;
  top:0;
  left:0;
  right:0;
  bottom:0;
  background:radial-gradient(black 7px, white 8px);
  animation:blink 0.8s linear infinite alternate;
}
@keyframes blink {
  from {
    clip-path: ellipse(50% 50% at 50% 50%);  
  }
  to {
    clip-path: ellipse(50%  0% at 50% 50%);
  }
}
<div class="eyes">
  <span></span>
  <span></span>
</div>

user_86203330

Make the #eyeball inside the #eyemask and that should do it

body {
  margin: 0px;
}

#container {
  position: absolute;
  z-index: 100;
  width: 300px;
  height: 300px;
  background: lightblue;
  display: flex;
  justify-content: center;
  align-items: center;
}

#eyes {
  position: absolute;
  z-index: 12;
  width: 120px;
  height: 100px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

#eye1,
#eye2 {
  z-index: 12;
}

#eye1,
#eye2,
#eyemask {
  position: absolute;
  width: 50px;
  height: 50px;
  background: #eee;
  display: flex;
  justify-content: center;
  align-items: center;
  clip-path: circle(50% at 50% 50%);
}

#eye2 {
  transform: translateX(60px);
}

#eyemask {
  background: #fff;
  animation-name: blink;
  animation-duration: 5s;
  animation-iteration-count: infinite;
}

@keyframes blink {
  0% {
    transform: scaleY(1);
  }
  20% {
    transform: scaleY(1);
  }
  30% {
    transform: scaleY(0);
  }
  40% {
    transform: scaleY(1);
  }
  100% {
    transform: scaleY(1);
  }
}

#eyeball1,
#eyeball2 {
  position: absolute;
  z-index: 11;
  width: 10px;
  height: 10px;
  background: #000;
  clip-path: circle(50% at 50% 50%);
}
<head>
  <link rel="stylesheet" type="text/css" href="Eyes.css">
</head>

<body>
  <div id="container">
    <div id="eyes">
      <div id="eye1">
        <div id="eyemask">
          <div id="eyeball1"></div>
        </div>
      </div>
      <div id="eye2">
        <div id="eyemask">
          <div id="eyeball2"></div>
        </div>
      </div>
    </div>
  </div>
</body>

user_32896600
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