.contributors{
    margin: 0 4em;

}

.contributors h3{
    text-align: center;
}

.contributors-border{
    width: 250px;
    border: 2px solid red;
    margin: 0 auto;
    margin-bottom: 3em;
}


@media all and (max-width: 500px){
    .container{
        max-width: 90%;
    }
    .contributors-border{
        border: 1px solid red;
        width: 100px;
    }


}

@media(min-width: 501px) and (max-width: 968px){
    .container{
        max-width: 90%;
    }
    .contributors-border{
        border: 1px solid red;
        width: 100px;
    }

}