.image-and-content {
    width: 100%;
    margin-top: 60px;
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: #ffffff;
}

.image-container img {
    width: 100%;
    height: auto;
    display: block;
    margin: 0;
}
.image-container {
    position: relative;
    width: 100%;
}

.signup-button-on-image {
    position: absolute;
    bottom: 75px;
    left: 49%;
    transform: translateX(-50%);
    background-color: #c72432;
    color: white;
    font-size: 25px;
    padding: 16px 36px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: bold;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    transition: background-color 0.3s ease;
}

.signup-button-on-image:hover {
    background-color: #a8210d;
}

.what-is-included {
    background-color: #ffffff;
    padding: 20px 15px;
    border-radius: 15px;
    width: 100%;
    margin-top: 0;
}

.what-is-included h2 {
    font-size: 32px;
    color: #333;
    font-weight: bold;
    margin-bottom: 20px;
    text-align: left;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: -30px;
}

.what-is-included h2 span {
    display: inline-block;
    border-bottom: 3px solid #c72432;
    padding-bottom: 10px;
}

.what-is-included ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
    width: 100%;
    text-align: left;
}

.what-is-included ul li {
    font-size: 18px;
    padding: 6px 0;
    line-height: 1.4;
    display: flex;
    align-items: center;
    margin-left: 0;
}

.checkmark {
    color: #c72432;
    font-size: 20px;
    margin-right: 10px;
}

.image-and-content > .image-container,
.image-and-content > .what-is-included {
    margin: 0;
    padding: 0;
}
@media (max-width: 1100px) {
    .image-container img {
        content: url('/static/images/pinduoduo/course-pinduoduo.png');
        margin-top: 0;
    }

    .signup-button-on-image {
        font-size: 12px;
        padding: 10px 28px;
        bottom: 45px;
        left: 49%;
        transform: translateX(-50%);
    }

}

@media (max-width: 800px) {
    .image-container img {
        content: url('/static/images/pinduoduo/course-pinduoduo-mobile.png');
        margin-top: 0;
    }

    .signup-button-on-image {
        font-size: 27px;
        padding: 10px 28px;
        bottom: 105px;
        left: 48%;
        transform: translateX(-50%);
    }

    .what-is-included h2 {
        font-size: 1.5rem;
        margin-bottom: 30px;
        margin-top: -10px;
        text-align: center;
    }

    .what-is-included .container {
        padding: 40px 20px;
        width: 100%;
        margin-top: -20px;
    }

    .what-is-included ul li {
        font-size: 17px;
        padding: 6px 0;
        line-height: 1.5;
    }

    .what-is-included ul {
        padding-left: 0;
        margin-left: 0;
        margin-top: -20px;
    }

    .what-is-included ul li {
        margin-left: 0;
        margin-right: 0;
    }

    .checkmark {
        font-size: 20px;
    }

    .what-is-included {
        padding: 20px 10px;
    }
}

@media (max-width: 430px) {
    .image-container img {
        content: url('/static/images/pinduoduo/course-pinduoduo-mobile.png');
        margin-top: 0;
    }

    .signup-button-on-image {
        font-size: 11px;
        padding: 10px 28px;
        bottom: 55px;
        left: 48%;
        transform: translateX(-50%);
    }

}

@media (max-width: 400px) {
    .image-container img {
        content: url('/static/images/pinduoduo/course-pinduoduo-mobile.png');
        margin-top: -5px;
    }
    .signup-button-on-image {
        font-size: 10px;
        padding: 10px 28px;
        bottom: 48px;
        left: 47.2%;
        transform: translateX(-45%);
    }
}

@media (max-width: 375px) {
    .image-container img {
        content: url('/static/images/pinduoduo/course-pinduoduo-mobile.png');
        margin-top: -5px;
    }

    .signup-button-on-image {
        font-size: 11px;
        padding: 7px 18px;
        bottom: 49px;
        left: 46.5%;
        transform: translateX(-45%);
    }
}

@media (max-width: 360px) {
    .image-container img {
        content: url('/static/images/pinduoduo/course-pinduoduo-mobile.png');
        margin-top: -5px;
    }

    .signup-button-on-image {
        font-size: 9px;
        padding: 7px 18px;
        bottom: 42px;
        left: 46.5%;
        transform: translateX(-45%);
    }
}