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

body {
    background-color: black;
}

.container {
    margin: 250px auto;    
    max-width: 340px;    
    width: 100%;
}

img {
    height: 80px; 
    opacity: 70%;
    transition: all ease 0.6s;   
}

img:hover {
    cursor: pointer;
    opacity: 100%;
    transform: scale(1.2);
    transition: all ease 0.6s;    
}