* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.courses {
    padding: 4rem;
}

.courses h1 {
    text-align: center;
    font-size: 45px;
    margin: 2rem 0;
}

.available-courses {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    gap: 2rem;
}

.available-courses .sigma-course,
.available-courses .alpha-course,
.available-courses .delta-course {
    width: 25rem;
}

.available-courses h2 {
    font-size: 20px;
}

.available-courses .course-detail {
    display: flex;
    justify-content: space-evenly;
    align-items: flex-start;
    flex-direction: column;
    height: 13rem;
    padding-left: 16px;
}

.available-courses .course-detail p {
    /* display: none; */
    line-height: 25px;
    color: #262626;
    font-size: 16px;
}

.available-courses .course-detail a {
    background-color: #6674cc;
    color: #ffffff;
    padding: 15px 60px;
    font-weight: 600;
}

@media only screen and (max-width: 428px) {


    .courses h1 {
        text-align: center;
        font-size: 30px;
        margin: 2rem 0;
    }

    .available-courses {
        justify-content: center;
        align-items: center;
        flex-direction: column;
    }

    .available-courses img {
        height: 11rem;
    }

    .available-courses .sigma-course,
    .available-courses .alpha-course,
    .available-courses .delta-course {
        width: 20rem;
    }

    .available-courses h2 {
        font-size: 18px;
    }

    .available-courses .course-detail a {
        padding: 15px 7rem;
        font-weight: 600;
    }
}

@media only screen and (min-width:429px) and (max-width:838px) {

    .available-courses {
        /* justify-content: center; */
        /* align-items: center; */
        flex-wrap: wrap;
    }


}