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HTML

              
                <!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="stylesheet" href="./style.css">
    <title>Document</title>
</head>
<body>
  <h1>Unique Buttons</h2>
   <div class="container">
    <button class="first-btn btn">Hover me</button>
    <button class="second-btn btn">Hover me</button>
    <button class="third-btn btn">Hover me</button>
    <button class="fourth-btn btn">Hover me</button>
    <button class="fifth-btn btn">Hover me</button>
    <button class="sixth-btn btn">Hover me</button>
    <button class="seventh-btn btn">Hover me</button>
    <button class="eigth-btn btn">Hover me</button>
    <button class="ninth-btn btn">Hover me</button>
    <button class="tenth-btn btn">Hover me</button>
   </div>
</body>
</html>
              
            
!

CSS

              
                *
{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body
{
    background-color: #E3CD81FF;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
  flex-direction:column;
}
h1
{
  color:#30b0abFF;
  font-size:3.4em;
  margin-bottom:19px;
  text-transform:uppercase;
  font-family:sans-serif;
  letter-spacing:5px;
}
.container
{
    width: 90%;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    height: auto;
    gap: 7%;
}
.btn
{
    outline: none;
    border: none;
    width: 90px;
    height: 30px;
    background: transparent;
    color: white;
    position: relative;
    font-size: 0.9em;
    margin: 17px 0;
}

/* first button -----------------------------*/

.first-btn
{
    border-bottom: 3px solid #89ABE3FF;
    transition:  all 400ms ease-out;
}
.first-btn:hover
{
    background: #89ABE3FF;

}


/* second button ---------------------------*/

.second-btn
{
    border: 3px solid #7DB46CFF;
   
    z-index: 4;
    transform-style: preserve-3d;
}
.second-btn::after
{
    content: "";
    position: absolute;
    width: 100%;
    height: 100%;
    background:#9de6b8 ;
    left: 7px;
    top: 5px;
    z-index: -2;
    transition: all 300ms linear;
    transform: translateZ(-20px);
}
.second-btn:hover::after
{
    left: 0; top: 0;
}


/* Third button ----------------------------*/

.third-btn
{
   
    
    transition: all 400ms;
}
.third-btn::before
{
    content: "";
    position: absolute;
    width: 15px;
    height: 15px;
    top: 0; left: 0;
   border-left: 3px solid blue;
   border-top: 3px solid blue;
   transition: all 400ms;
}
.third-btn::after
{
    content: "";
    position: absolute;
    width: 15px;
    height: 15px;
    bottom: 0; right: 0;
   border-right: 3px solid blue;
   border-bottom: 3px solid blue;
   transition: all 400ms;
}
.third-btn:hover::before,.third-btn:hover::after
{
    width: 100%;
    height: 100%;
}

/* fourth button ---------------------------*/

.fourth-btn
{
  
    overflow: hidden;
    
}
.fourth-btn::before
{
    content: "";
    position: absolute;
    width: 100%;
    height: 100%;
    background: linear-gradient(to left , transparent 44% , #606060FF 84%);
    left: 0;top: 0;
    z-index: -5;
    
    animation: fourth-btn-anime 1.4s linear infinite ;
}
.fourth-btn::after
{
    content: "";
    position: absolute;
    width: 95%;
    height: 95%;
    transform:translate(-50%,-50%) ;
    left:50%;top: 50%;
    background: #E3CD81FF;
    z-index: -4;
}
@keyframes fourth-btn-anime
{
    0%{
        transform:  rotateZ(0deg);
    }
    0%{
        transform:  rotateZ(360deg);
    }
}


/* fifth button --------------------------*/

.fifth-btn
{
    background: #101820FF;
   z-index: 0;
   overflow: hidden;
}
.fifth-btn::after
{
    content: "";
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background: #F2AA4CFF;
    z-index: -5;
    transform: skewX(45deg) scaleX(0);
    transform-origin: center;
    transition: all 500ms ease;
}
.fifth-btn:hover::after
{
    transform: skewX(45deg) scaleX(1.4);
}


/* sixth button ------------------------------*/

.sixth-btn::before
{
    content: "";
    position: absolute;
    width: 100%;
    height:100%;
    bottom: 0;
    left: 0;
    background: #603F83FF;
    z-index: -2;
    transform-origin: bottom;
    transform: scaleY(0.15);
   transition: all 500ms ease;
}
.sixth-btn:hover:before
{
    transform: scaleY(1);
}

/* seventh button ---------------------------*/

.seventh-btn
{
    background: #28334AFF;
}
.seventh-btn::before
{
    content: "";
    position: absolute;
    width: 90%;
    height:90%;
    bottom: 0;
    left:5px;
    background: #FC766AFF;
    transform-origin: left;
    transform: rotateZ(0deg);
    z-index: -2;
    transition: all 500ms ease-out;
}
.seventh-btn::after
{
    content: "";
    position: absolute;
    width: 90%;
    height:90%;
    top: 0;
    right:5px;
    background: #FFBA52FF;
    transform-origin: right;
    transform: rotateZ(0deg);
    z-index: -2;
    transition: all 500ms ease-out;
}
.seventh-btn:hover::before , .seventh-btn:hover::after
{
    transform: rotateZ(-10deg);
}


/* eigth button ----------------------------*/

.eigth-btn 
{
    background: #339E66FF;
    z-index: 0;
    overflow: hidden;
    
}
.eigth-btn::before
{
    content: "";
    position: absolute;
    width: 100%;
    height:100%;
    bottom: 0;
    left: 0;
    background: #95DBE5FF;
    z-index: -2;
    transform: scaleY(0);
    transform-origin: bottom;
    transition: transform  500ms 0.5s;
}
.eigth-btn:hover:before
{
   
    transform: scaleY(1);
    transition: transform 500ms ;
   
}


.eigth-btn::after
{
    content: "";
    position: absolute;
    width: 100%;
    height:100%;
    bottom: 0;
    left: 0;
    background: orchid;

    z-index: -2;
    transform: scaleY(0);
    transform-origin: bottom;
    transition: transform 500ms  linear ;
}
.eigth-btn:hover:after
{
    transform: scaleY(1);
    transition: transform 500ms 0.5s linear;
}


/* ninth button ------------------------ */

.ninth-btn
{
    background: blueviolet;
    z-index: 0;
    overflow: hidden;
}
.ninth-btn::before
{
    content: "";
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: -100%;
    background: rgba(220, 193, 245, 0.699);
    z-index: -5;
    transform: skewX(45deg) scaleX(0.5);
    transition: left 500ms linear;
}
.ninth-btn:hover:before
{
    left: 100%;
}


/* tenth button -------------------------- */

.tenth-btn
{
    background: #EE2737FF;
    border-radius: 30px;
    z-index: 0;
    overflow: hidden;
}
.tenth-btn::before
{
    content: "";
    position: absolute;
    width:200px;
    height: 200px;
    top: -200%;
    left:-20%;
    background: #643E46FF;
    border-radius: 50%;
    transition: all 700ms linear;
    transform: scale(0);
    transform-origin: left;
    z-index: -1;
}
.tenth-btn:hover:before
{
    transform: scale(1);
}


              
            
!

JS

              
                
              
            
!
999px

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