.columns {
    margin: 70px auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.columns >div:first-of-type {
    margin-right: 100px;
}
.columns >div >img {
    width: 100%;
}
.destak {
    background-color: #92C048;
}
.destak ul {
    display: flex;
    list-style: none;
    padding: 0;
}
.destak ul li {
    margin-right: 25px;
    margin-bottom: 0;
}
.destak ul li img {
    width: 33px;
    height: 33px;
}
.destak-description {
    display: flex;
    align-items: center;
}
.destak-description p {
    font-size: 22px;
}
.destak-description h3 {
    white-space: nowrap;
    margin-right: 40px;
}
.destak-description div {
    max-width: 425px;
}
.destak-content.columns > div:first-of-type{
    margin-right: 0;
}
.download {
    margin-bottom: 70px;
}
.download .columns {
    justify-content: space-around;
    margin-bottom: 20px;
}
.download .download-select {
    width: 40%;
}
.download .columns > div:first-of-type{
    margin-right: 0;
}
.download h2 {
    font-weight: 300;
}
#book-select {
    color: #58595B;
}
select#book-select option {
    padding-top: 10px;
    padding-bottom: 10px;
    line-height: 1.5rem;
}
.book-list {
    display: flex;
    flex-direction: column;
    flex-wrap: wrap;
    max-height: 280px;
    list-style: disc;
}
.book-list li {
    cursor: pointer;
    text-decoration: none;
}
.book-list li a {
    text-decoration: none;
}
.book-list li:hover {
    text-decoration: underline;
} 
.download-list {
    padding-left: 40px;
}
@media (max-width: 1130px) {
    .columns {
        margin: 70px 40px;
    }
}
@media (max-width: 930px) {
    .destak-content.columns {
        flex-direction: column;
    }
    .destak ul li:last-of-type {
        margin-right: 0;
    }
    .destak-content ul {
        margin-top: 30px;
    }
    .destak-description {
        flex-direction: column;
        margin-bottom: 30px;
    }
    .destak-description p {
        font-size: 16px;
    }
    .destak-description h3  {
        margin-right: 0;
        margin-top: 15px;
        margin-bottom: 15px;
    }
  
}
  @media (max-width: 758px) {
    .columns {
        flex-direction: column;
        margin: 40px 25px;
        justify-content: flex-start;
    }
    .download .download-select {
        width: 100%;
    }
    .download-list {
        margin-left: 25px;
        margin-right: 25px;
        padding-left: 0;
    }
    .book-list {
        max-height: none;
    }
    .download h2 {
        font-size: 24px;
    }
}