body {
    margin: 0;
}

html{
    scroll-behavior: smooth;
}

.d-flex{
    display: flex;
}

.d-none{
    display: none;
}

.align-center{
    align-items: center;
}

.align-start{
    align-items: flex-start;
}

.align-end{
    align-items: flex-end;
}

.justify-center{
    justify-content: center;
}

.justify-start{
    justify-content: flex-start;
}

.justify-end{
    justify-content: flex-end;
}

.justify-around{
    justify-content: space-around;
}

.justify-between{
    justify-content: space-between;
}

.justify-evenly{
    justify-content: space-evenly;
}

.column{
    flex-direction: column;
}

.flex-wrap{
    flex-wrap: wrap;
}

.column-reverse{
    flex-direction: column-reverse;
}

.txt-center{
    text-align: center;
}

.txt-left{
    text-align: left;
}

.w-100{
    width: 100%;
}

.w-90{
    width: 90%;
}

.h-100vh{
    height: 100vh;
}