style.css

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

body {
    background-image: linear-gradient(to top, rgba(0, 0, 0, 0.8)50%, rgba(0, 0, 0, 0.8)50%), url('./Img/Cover\ Pic.jpg');
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    flex-direction: column;
    font-family: 'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;
}

h2 {
    margin-bottom: 30px;
    font-size: 2.5em;
    color: #fff;
}

.box {
    position: relative;
    width: 600px;
    height: 200px;
    border-bottom: 2px solid #555;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

.box label {
    position: relative;
    width: 100%;
    height: 33.333%;
    border: 2px solid #555;
    border-bottom: none;
    cursor: pointer;
}

.box label input {
    position: relative;
    appearance: none;
    z-index: 10;
}

.box label i {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: 600px;
    box-shadow: rgba(0, 0, 0, 0.35) 0px 5px 15px;
}

.box label:nth-child(1) i {
    background-image: url('./Img/01.jpg');
    animation: animate 0.5s steps(3) infinite;
}

.box label:nth-child(2) i {
    background-image: url('./Img/02.jpg');
    animation: animate 0.4s steps(3) infinite;
}

.box label:nth-child(3) i {
    background-image: url('./Img/03.jpg');
    animation: animate 0.7s steps(3) infinite;
}

@keyframes animate {
    0% {
        background-position: 0px;
    }

    100% {
        background-position: 600px;
    }
}

.box label input:checked~i {
    animation-play-state: paused;
}

.reset {
    margin-top: 40px;
    border: none;
    font-size: 1.25em;
    padding: 10px 25px;
    background: #ef7500;
    color: #fff;
    border-radius: 4px;
    cursor: pointer;
    box-shadow: rgba(100, 100, 111, 0.2) 0px 7px 29px 0px;
}

.reset:active {
    background: #d63c3c;
    transform: scale(0.95);
}

@media screen and (max-width:357px) {

    h2 {
        font-size: 1.5rem;
    }

    .box {
        width: 100%;
        max-width: 357px;
        height: auto;
        border: 2px solid red;
        padding: 20px;
    }

    .box label {
        height: auto;
    }

    .box label i {
        background-size: 100%;
    }

    .reset{
        font-size: 1rem;
    }
}