body {
    background-color: #f9f9f9;
}

.examples-content {
    text-align: center;
    margin-top: 50px;
}

.examples-content .first-example, .examples-content .second-example, .examples-content .third-example {
    display: inline-block;
    width: 300px;
    margin-left: 5%;
    margin-right: 5%;
    margin-bottom: 20%;
}

.examples-content img {
    vertical-align: top;
    width: 300px;
}
@media (max-width: 600px) {
    .examples-content {
        margin-top: 5%;
    }
}

@media (max-width: 330px) {
    .examples-content {
        margin-top: 0;
    }
    .examples-content img {
        width: 100%;
        min-width: 200px;
    }
    .examples-content .first-example, .examples-content .second-example, .examples-content .third-example {
        width: 100%;
        margin-left: 0;
        margin-right: 0;
        margin-bottom: 20%;
    }
}