.flex {
width: 300px;
height: 200px;
box-sizing: border-box;
background-color: white;
/* flex */
display: flex;
justify-content: center;
align-items: center;
margin: 30px auto;
/* โญ๏ธ border */
border: 5px solid black;
/* โญ๏ธ outline */
outline: 5px solid orange;
outline-offset: 0.5rem;
/* โญ๏ธ box-shadow */
/* offset-x | offset-y | blur-radius | spread-radius | color */
box-shadow: 1px 1px 6px 1px rgba(46, 49, 0, 0.89);
}