@media(max-width: 768px) {
    #maintitle {
        font-size: 3rem;
    }
    .intro-img {
        margin-top: 4%;
    }
    .cta {
        display: inline-block;
        margin-bottom: 5%;
        padding: 10%;
    }
    .test-title, .vision-title {
        padding-bottom: 8%;
        padding-top: 8%;
    }
    .hero-content {
        margin-top: 20%;
    }
    .logomain {
        width: 100px;
    }
}