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HTML

              
                <div class="box">
        <div class="front-box">
            <p>HASHNODE</p>
        </div>
        <div class="back-box-hide"></div>
        <div class="back-box"></div>
        <div class="button"></div>
        <div class="opening"></div>
        <div class="opening-hide"></div>
        <div class="opening-shadow"></div>
        <div class="opening-shadow animated"></div>
        <div class="cover"></div>
        <div class="cat">
            <div class="head"></div>
            <div class="inner-ear left"></div>
            <div class="inner-ear right"></div>
            <div class="ear left"></div>
            <div class="ear right"></div>
            <div class="face"></div>
            <div class="eye-highlight left"></div>
            <div class="eye-highlight-round left"></div>
            <div class="eye-highlight right"></div>
            <div class="eye-highlight-round right"></div>
        </div>
        <div class="paw"></div>
        <div class="paw2"></div>
        <div class="hashnode-logo-coin"></div>
        <div class="box-shadow"></div>
    </div>
              
            
!

CSS

              
                * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    padding: 0;
    margin: 0;
    background-color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    min-width: 320px;
    min-height: 450px;
    position: relative;
}

.box {
    position: relative;
    width: 304px;
    height: 355px;
}

.front-box {
    top: 135px;
    position: absolute;
    border-top: 150px solid #7b6954;
	border-left: 15px solid transparent;
	border-right: 15px solid transparent;
	height: 0;
	width: 304px;
    z-index: 4;

    display: flex;
    justify-content: center;
    align-items: center;
}

.front-box p{
    font-family: 'Exo', Arial, Helvetica, sans-serif;
    font-size: 30px;
    margin-top: -150px;
    color: rgb(177, 145, 6);
    border-bottom: 5px solid rgb(177, 145, 6);
    transform: rotateX(-30deg);
}

.box-shadow {
    top: 285px;
    left: 8px;
    position: absolute;
    border-bottom: 80px solid rgba(0, 0, 0, 0.08);
	border-left: 7.5px solid transparent;
	border-right: 7.5px solid transparent;
	height: 0;
	width: 288px;
    z-index: 10;
}

.back-box {
    top: 0px;
    position: absolute;
    border-bottom: 135px solid #d5b386;
	border-left: 15px solid transparent;
	border-right: 15px solid transparent;
	height: 0;
	width: 304px;
    z-index: 0;
}

.back-box-hide {
    top: 65px;
    left: 12px;
    position: absolute;
    background-color: #d5b386;
    height: 70px;
    width: 280px;
    z-index: 4;
}

.button {
    position: absolute;
    top: 70px;
    right: 30px;
    width: 100px;
    height: 50px;
    border-radius: 50%;
    border-bottom: 4px solid #b4b4b4;
    background-color: #e4e4e4;
    z-index: 5;
}

.opening {
    top: 0px;
    left: 12px;
    position: absolute;
    border-bottom: 65px solid #221611;
	border-left: 7.5px solid transparent;
	border-right: 7.5px solid transparent;
	height: 0;
	width: 280px;
    z-index: 1;
}

.opening-shadow {
    top: 10px;
    left: 175px;
    position: absolute;
    background: rgba(0, 0, 0, 0.08);
    background: linear-gradient(0deg, rgba(0,0,0,0) 15%, rgba(0,0,0,1) 100%);
    height: 55px;
	width: 110px;
    z-index: 9;
}

.opening-shadow.animated {
    left: 20px;
    animation: shadow 10s infinite ease-in-out;
	width: 155px;
    z-index: 3;
}

.opening-hide {
    top: 15px;
    right: 55px;
    position: absolute;
    background-color: #221611;
    height: 50px;
	width: 50px;
    z-index: 7;
}

.cover {
    top: 0px;
    left: 12px;
    position: absolute;
    border-bottom: 65px solid #d5b386;
	border-left: 7.5px solid transparent;
	border-right: 7.5px solid transparent;
	height: 0;
	width: 280px;
    z-index: 10;
    transform: rotateX(0deg);
    animation: open 10s infinite ease-in-out;
    transform-origin: top;
}

.cat {
    position: relative;
    animation: cat 10s infinite ease-in-out;
    z-index: 2;
}

.head {
    top: 15px;
    left: 55px;
    position: absolute;
    width: 110px;
    height: 80px;
    border-radius: 50%;
    background-color: #f5f6f1;
    z-index: 2;
}

.ear {
    top: 15px;
    left: 48px;
	position: absolute;
    width: 0; 
    height: 0; 
    border-left: 15px solid transparent;
    border-right: 15px solid transparent;
  
    border-bottom: 20px solid #f5f6f1;
    transform: rotate(-42deg);
    z-index: 2;
}

.ear.right {
    left: 143px;
    transform: rotate(42deg);
}

.inner-ear {
    top: 20px;
    left: 55px;
	position: absolute;
    width: 0; 
    height: 0; 
    border-left: 10px solid transparent;
    border-right: 10px solid transparent;
  
    border-bottom: 15px solid #e093a7;
    transform: rotate(-42deg);
    z-index: 3;
}

.inner-ear.right {
    left: 145px;
    transform: rotate(42deg);
}

.face {
    top: 40px;
    left: 75px;
	position: absolute;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: #100b08;
    z-index: 3;
    box-shadow: 55px 0px;
}

.face::after {
    content: '';
    top: 13px;
    left: 33px;
	position: absolute;
    width: 15px;
    height: 10px;
    border-radius: 50%;
    background-color: #e093a7;
    z-index: 3;
}

.paw {
    top: 65px;
    right: 60px;
	position: absolute;
    background-color: rgba(246,244,240,1);
    border-bottom-left-radius: 50%;
    border-bottom-right-radius: 50%;
    width: 40px;
    height: 0px;
    z-index: 7;
    animation: paw 10s infinite ease-in-out;
}

.paw2 {
    top: 65px;
    right: 60px;
	position: absolute;
    background-color: rgba(246,244,240,1);
    border-top-left-radius: 50%;
    border-top-right-radius: 50%;
    width: 40px;
    height: 0px;
    z-index: 8;
    animation: paw2 10s infinite ease-in-out;
}

.hashnode-logo-coin {
    height: 30px;
    width: 30px;
    border-radius: 9px;
    background: rgb(242,199,6);
    background: linear-gradient(25deg, rgba(242,199,6,1) 0%, rgba(238,180,3,1) 100%);
    position: absolute;
    top: 78px;
    right: 65px;
    transform: rotate(-45deg);
    z-index: 6;
    animation: coin 10s infinite ease-in-out;
}

.hashnode-logo-coin::after/*flag cen ter*/ {
    content: "";
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #fff;
    position: absolute;
    left: 10px;
    top: 10px;
}

.eye-highlight {
    position: absolute;
    top: 45px;
    left: 85px;
    height: 10px;
    width: 7px;
    border-radius: 50%;
    background-color: white;
    z-index: 11;
    box-shadow: 55px 0px white;
}

.eye-highlight-round {
    position: absolute;
    top: 50px;
    left: 80px;
    height: 5px;
    width: 4px;
    border-radius: 50%;
    background-color: white;
    z-index: 11;
    box-shadow: 55px 0px white;
}

@keyframes shadow {
    10%, 100% {
        transform: translateY(50px);
    }
    30%, 80% {
        transform: translateY(0);
    }
}

@keyframes cat {
    10%, 100% {
        transform: translateY(50px);
    }
    30%, 80% {
        transform: translateY(-8px);
    }
}

@keyframes open {
    10%, 100% {
        transform: rotateX(0deg);
    }
    30%, 80% {
        transform: rotateX(80deg);
    }
}

@keyframes paw {
    10%, 35% {
        height: 0px;
    }
    50%, 60% {
        height: 40px;
    }
    75%, 100% {
        height: 0px;
    }
}

@keyframes paw2 {
    10%, 25% {
        height: 0px;
        transform: translateY(0);
    }
    35%, 75% {
        height: 20px;
        transform: translateY(-20px);
    }
    85%, 100% {
        height: 0px;
        transform: translateY(0);
    }
}

@keyframes coin {
    0% {
        opacity: 0;
    }
    10% {
        opacity: 1;
    }

    0% {
        transform: translateY(0) rotate(-45deg);
    }
    60% {
        transform: translateY(0) rotate(-45deg);
    }
    75%, 100% {
        transform: translateY(-50px) rotate(-45deg);
    }
}
              
            
!

JS

              
                
              
            
!
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