.content-wrapper {
    display: flex;
    flex-direction: column;
    row-gap: 10px;
}

.content-holder {
    display: flex;
    flex-direction: column;
    border: 1px solid black;
    padding: 6px;
}

.content-holder:hover {
    box-shadow: 10px 0px 20px 3px;
}

h2 {
    font-size: 20px;
    text-align: center;
}

.button-holder {
    text-align: center;
}

.button-holder > button {
    background-color: black;
    color: white;
}

.button-holder > button > a {
    color: white;
}

@media only screen and (min-width: 768px ) {

   .content-wrapper {
    flex-direction: row;
    column-gap: 10px;
   }
    
   .content-holder {
    flex:1;
   }
}