CODEWITHSUNDEEP
htmlcsscss-animationsclip-path
Tane
Tane

Reputation: 491

Masking - Show div only on top of certain div?

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?

Upvotes: 5

Views: 354

Answers (2)

Temani Afif
Temani Afif

Reputation: 273571

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>

Upvotes: 3

Nidhin Joseph
Nidhin Joseph

Reputation: 10237

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>

Upvotes: 2

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