css

.db {
    display: block;
}

.dib {
    display: inline-block;
}

.code {
    font-family: Consolas, monaco, monospace;
}

.baskerville {
    font-family: baskerville, serif;
}

.i {
    font-style: italic;
}

.fw1 {
    font-weight: 100;
}

.fw9 {
    font-weight: 900;
}

.vh-100 {
    height: 100vh;
}

.tracked-tight {
    letter-spacing: -.05em;
}

.lh-copy {
    line-height: 1.5;
}

.link {
    text-decoration: none;
    transition: color .15s ease-in;
}

.link:link, .link:visited {
    transition: color .15s ease-in;
}

.link:hover {
    transition: color .15s ease-in;
}

.link:active {
    transition: color .15s ease-in;
}

.link:focus {
    transition: color .15s ease-in;
    outline: 1px dotted currentColor;
}

.list {
    list-style-type: none;
}

.w-100 {
    width: 100%;
}

.black {
    color: #000;
}

.light-purple {
    color: #a463f2;
}

.bg-washed-blue {
    background-color: #f6fffe;
}

.hover-light-purple:hover {
    color: #a463f2;
}

.hover-light-purple:focus {
    color: #a463f2;
}

.pl0 {
    padding-left: 0;
}

.pv2 {
    padding-top: .5rem;
    padding-bottom: .5rem;
}

.ph3 {
    padding-left: 1rem;
    padding-right: 1rem;
}

.ph5 {
    padding-left: 4rem;
    padding-right: 4rem;
}

.mb3 {
    margin-bottom: 1rem;
}

.mt4 {
    margin-top: 2rem;
}

.mt5 {
    margin-top: 4rem;
}

.tc {
    text-align: center;
}

.f1 {
    font-size: 3rem;
}

.f4 {
    font-size: 1.25rem;
}

.f5 {
    font-size: 1rem;
}

@media screen and (min-width: 30em) {
    .f4-ns {
        font-size: 1.25rem;
    }
}

@media screen and (min-width: 60em) {
    .mt5-l {
        margin-top: 4rem;
    }

    .f-headline-l {
        font-size: 6rem;
    }

    .f1-l {
        font-size: 3rem;
    }

    .f3-l {
        font-size: 1.5rem;
    }
}