style.css

*{
    margin: 0px;
    padding: 0px;
    box-sizing: border-box;
}
body{
    background-color: #000;
    color: #fff;
}
.container{
    width: 40%;
    margin: auto;
    overflow: hidden; 
    /* border: 5px solid #fff;  */
    position: relative;
}
.slide{
    display: flex;
    width: 100%;
    height: 500px;
}

#prev-btn{
    position: absolute;
    top: 50%;
    z-index: 10;
    left: 5%;
    font-size: 20px;
    color: #fff;
    cursor: pointer;
    opacity: .4;

}
#prev-btn:hover{
    font-size: 50px;
    transform: scale(1.5);
    opacity: 1;
    transition: .4s;

}
#next-btn{
    position: absolute;
    top: 50%;
    z-index: 10;
    right: 5%;
    font-size: 20px;
    color: #fff;
    cursor: pointer;
    opacity: .4;
}
#next-btn:hover{
    font-size: 50px;
    transform: scale(1.5);
    opacity: 1;
    transition: .4s;
}