style.css

*{
    margin:0;
    padding:0;
    box-sizing: border-box;
}
body{
    width: 100%;
    height: 100%;
    background-color: #555;

}
section{
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}
.container{
    position: relative;
    height: 450px;
    width: 800px;
    background-color: #222;
    
}
.clip{
    position: absolute;
    width: 100%;
    height: 100%;
    top:0;
    right: 0;
    transition: all 0.5s;
}

.clip1{
    background-image: url(https://images.unsplash.com/photo-1546518086-03ef264c9885?q=80&w=1965&auto=format&fit=crop&ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D);
    background-position: center;
    background-size: cover;
    clip-path: polygon(0 0, 35% 0, 15% 100%, 0 100%);

}
.clip2{
    background-image: url(https://images.unsplash.com/photo-1525609004556-c46c7d6cf023?q=80&w=1937&auto=format&fit=crop&ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D);
    background-position: center;
    background-size: cover;
    clip-path: polygon(35% 0, 65% 0, 85% 100%, 15% 100%);
}

.clip3{
    background-image: url(c3.png);
    background-position:center;
    background-size: cover;
    clip-path: polygon(65% 0, 100% 0, 100% 100%, 85% 100%);
}
.container:hover .clip{
    clip-path: polygon(100% 0, 100% 0,100% 100%,100% 100%);
}
.container .clip:hover{
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
}