#mainContent {
    display: inline-flex;
    flex-wrap: wrap;
    justify-content: center;
    margin: 0 auto;
    background: lightgrey;
    border-radius: 20px;
    max-width: 1260px;
}

.appButton {
    flex: 0 1;
    margin: 35px;
    padding: 25px;
    border-radius: 15px;
    text-align: center;
    width: 300px;
    background-color: white;
}
.appButton h1 {
    margin: 0 0 25px 0;
}
.imgBox {
    width: 300px;
    height: 300px;
}
.appButton img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}