neff-steindesign.de/themes/neff/assets/scss/_grid.scss

html {
    scroll-behavior: smooth;
}

body {
    min-height: calc(100vh - calc(3 * #{$gutter-width}));
    font-family: $base-font-family;
    font-size: $base-font-size;
    line-height: $base-line-height;
    display: flex;
    flex-direction: column;
    padding: 105px 0 0 0;
    margin: 0;
    background-color: $background-color;
    background-size: 100%;
    background-position: center;
    background-attachment: fixed;
    background-size: cover;
    color: $font-color;

    @include background("default");
    @include background("bau");
}

header { 
    margin: 0; 
}

p {
    margin: 0.5rem 0;
}

h1, h2, h3, h4, h5, h6 {
    line-height: 1.2em;
    margin: .2em auto;
    font-family: $heading-font-family;
    font-weight: bold;
}

h1 {
    font-size: 1.6rem;
}

h2 {
    font-size: 1.3rem;
}

h3 {
    font-size: 1.2rem;
}

h4 {
    font-size: 1.1rem;
}

h5 {
    font-size: 1rem;
}

h6 {
    font-size: 1rem;
}

ul {
    list-style: circle;
    padding-left: 1.4em;
}

ol {
    list-style: decimal;
    padding-left: 1.4em;
}

table {
    tr {
        th, td {
            padding: calc(#{$gutter-width} / 2) calc(#{$gutter-width * 2}) calc(#{$gutter-width} / 2) 0;
        }

        th {
            font-weight: bold;
        }
    }
}

strong {
    font-weight: bold;
}

em {
    font-style: italic;
}



@media only screen and (min-width: $media-query) {
    body {
        padding: 155px 0 0 0;
    }

    h1 {
        font-size: 1.8rem;
    }

    h2 {
        font-size: 1.6rem;
    }

    h3 {
        font-size: 1.4rem;
    }

    h4 {
        font-size: 1.2rem;
    }

    h5 {
        font-size: 1.1rem;
    }

    h6 {
        font-size: 1rem;
    }
}

a {
    text-decoration: none;

    &.anchor:hover,
    &:active,
    &:visited,
    &:link {
        color: $primary-color;
    }

    &:hover {
        color: darken($primary-color, 15%);
    }

    &.anchor:hover {
        color: $font-color;
        cursor: default;
    }
}

img {
    border-radius: $border-radius;
    max-width: calc(100vw - calc(6 * #{$gutter-width}));
}

table {
    thead {
        tr {
            th {
                text-align: left;
            }
        }
    }
    tr {
        td {
            vertical-align: top;
        }
    }
}

.container {
    width: calc(100% - calc(6 * #{$gutter-width}));
    margin: 0 auto;
    padding: $gutter-width;
    background-color: rgba(255, 255, 255, 0.9);

    &.transparent {
        background-color: transparent;
    }
}

.flex {
    display: flex;
}


@media only screen and (min-width: $media-query) {
    .container {
        width: calc(#{$max-width} + calc(2 * #{$gutter-width}));
    }
}

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

.column {
    flex-direction: column;
}

.padding {
    padding: $gutter-width / 2;
    margin: $gutter-width / 2;
}

.news-featured-image {
    img {
        max-width: 100%;
        height: auto;
    }
}

.lead {
    font-size: 1.2em;
}

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

.text-right {
    text-align: right;
}

.list-unstyled {
    list-style: none;
    margin: 0;
    padding: 0;
}

.clearfix {
    clear: both;
}

figure.fill {
    img {
        width: 100%;
        height: auto;
    }
}

figure.round {
    img {
        border-radius: 50%;
    }
}

figure.small {
    img {
        max-width: 150px;
    }
}

img.original {
    width: auto !important;
}

figure {
    max-width: 100%;

    img {
        width: 100%;
        height: auto;
    }

    figcaption {
        color: $font-color;
    }
}

.btn {
    padding: .5rem 2rem;
    border: 1px solid black;
    border-radius: $border-radius;
    color: black
}

a.btn-primary {
    background-color: $primary-color;
    border: 1px solid $primary-color;

    color: white;
    
    &:active,
    &:visited {
        color: white;
    }
}

.call-to-action {
    min-height: 2rem;

    div {
        width: 100%;
    }
}

.full-width {
    min-width: 100%;
}

.youtube {
    width: 100%;
    position: relative; 
    padding-bottom: 56.25%; 
    height: 0; 
    overflow: hidden;
    margin: $gutter-width 0;
    border-radius: $border-radius;

    iframe {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%; 
        border:0;
    }
}