@media (max-width: 767px) 
{
    .example-image
    {
        width: 80vw;
        height: auto;
        margin-top: 20px;
        border-radius: 10%;
        background: rgba(0,0,0,0.3);
    }

    .example-image-caption
    {
        margin-top: 10px;
        color: white;
        font-size: 3vw;
        background: rgba(0,0,0,0.3);
        border-radius: 8px;
        width: 50%;
        padding: 1% 1%;
        text-align: center;
        margin-left: auto;
        margin-right: auto;
    }

    .mainheader
    {
        margin-top: 10vh;
    }
    .subtitle
    {
        margin-bottom: 3vh;
    }
}