*{
    margin: 0;
    padding: 0;
}
.all{
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

section#first_sec {
    display: flex;
    align-items: center;
    flex-direction: column;
    background: #ebebeb;
    padding: 2px 45rem;
}

section#down {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 1800px;
    margin-top: 2px;
    background: #7de5da;
}
.left_con {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 13px 280px;
}
.mid_con {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 4px 147px;
}
.right_con {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1px 280px;
}