body{
    margin: 0;
    padding: 0;
}

.d-block{
    display: block;
}

.d-visible{
    visibility: visible;
}

.d-hidden{
    visibility: hidden;
}

.d_flex_jc_c{
    display: flex;
    justify-content: center;
}

.d_flex_c_c{
    display: flex;
    align-items: center;
    justify-content: center;
}

.d_flex_jc_sb{
    display: flex;
    justify-content: space-between;
}

.d_flex_fd_r{
    display: flex;
    flex-direction: row;
    align-items: center;
 }

.d_flex_fd_c{
    display: flex;
    flex-direction: column;
    align-items: center;
}

.d_flex_fd_c_jc_sb{
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 250px;
    transform: translate(0, -30px);
}