KNACSS/less/knacss.less

/**
 * www.KNACSS.com V2.6n (2013-07) @author: Raphael Goetter, Alsacreations
 * Licence CC-BY http://creativecommons.org/licenses/by/3.0/fr/
 */

// LESS values : adapt them to your design
@basefont     : 14; // if "14" then 1em = 14px
@l-h          : 1.5; // equiv line-height 1.5em
@smallvalue   : 10px; // small value for margins / paddings
@mediumvalue  : 20px; // medium value for margins / paddings
@largevalue   : 30px; // large value for margins / paddings
@tinyscreen   : 480px; // tiny screens media query
@smallscreen : 768px; // small screens media query
@largescreen  : 1280px; // large screens media query
@gutter       : 1.5%; // gutter value (%) for grid layouts

// LESS functions : don't touch ;)
.pxtoem (@fontsize) {font-size: ((@fontsize / @basefont) + 0em);}
.line (@fontsize) {line-height: (@l-h *2 / (@fontsize / @basefont) + 0em)}
.mtop (@fontsize) {margin: (@l-h / (@fontsize / @basefont) + 0em) 0 0}
.grid (@number) {width: ((100%-(@gutter*(@number - 1))) / @number);}

.flow(@font-size, @base-font: @basefont, @base-height: @l-h) {
    @coef: ceil((1 / (@base-height * @base-font / @font-size)));
    @size: ((@font-size / @base-font) + 0em);
    @height: ((@base-font * @base-height / @font-size) + 0em);
    font-size:   @size;
    line-height: (@height * @coef);
    margin-top:  @height;
    margin-bottom: 0;
}


/* -----------------------------
               reset
   ----------------------------- */

/* base font-size corresponds to 10px and is adapted to rem unit */
html {
    font-size: 62.5%;
}
body {
    background-color: #fff;
    color: #000;
    font-family: helvetica, arial, sans-serif;
    font-size: ((@basefont / 10) + 0em);
    line-height: @l-h; // adapt to your design
}

/* font-sizing for content */
/* preserve vertical-rythm, thanks to http://soqr.fr/vertical-rhythm/ */
p,
ul,
ol,
dl,
blockquote,
pre,
td,
th,
label,
textarea,
caption,
details,
figure,
hgroup {
    .flow(@basefont);
}
h1, .h1-like {
    .flow(32); // equiv 32px
}
h2, .h2-like {
    .flow(28); // equiv 28px
}
h3, .h3-like {
    .flow(24); // equiv 24px
}
h4, .h4-like {
    .flow(20); // equiv 20px
}
h5, .h5-like {
    .flow(18); // equiv 18px
}
h6, .h6-like {
    .flow(16); // equiv 16px
}

/* alternate font-sizing */
.smaller {
    .pxtoem (10); /* equiv 10px */
}
.small {
    .pxtoem (12); /* equiv 12px */
}
.big {
    .pxtoem (16); /* equiv 16px */
}
.bigger {
    .pxtoem (18); /* equiv 18px */
}
.biggest {
    .pxtoem (20); /* equiv 20px */
}

/* soft reset */
html,
body,
textarea,
figure,
label {
    margin: 0;
    padding: 0;
}
ul,
ol {
    padding-left: 2em;
}
ul.unstyled {
    list-style: none;
}
code,
pre,
samp,
kbd {
    white-space: pre-wrap;
    font-family: consolas, 'DejaVu Sans Mono', courier, monospace;
    line-height: 1em;
}
code, kbd, mark {
    border-radius: 2px;
}
em {
    font-style: italic;
}
strong {
    font-weight: bold;
}
i,
b {
    font-style: normal;
    font-weight: normal;
}
kbd {
    padding: 0 2px;
    border: 1px solid #999;
}
code {
    padding: 2px 4px;
    background: rgba(0,0,0,.04);
    color: #b11;
}
mark {
    padding:2px 4px;
    background: #ff0;
}
table { margin-bottom: 1.5em; }

/* avoid top margins on first content element */
p, ul, ol, dl,
blockquote, pre,
h1, h2, h3, h4, h5, h6 {
    &:first-child {
        margin-top: 0;
    }
}

/* avoid margins on nested elements */
li p,
li ul,
li ol {
    margin-top: 0;
    margin-bottom: 0;
}

/* max values */
img, table, td, blockquote, code, pre, textarea, input, video {
    max-width: 100%;
}

/* pictures */
img {
    height: auto;
    vertical-align: middle;
}
/* Gmap3 max-width bug fix on images */
.gmnoscreen img,
.gmnoprint img {max-width: none !important;}

a img { border: 0; }

/* scripts */
body > script {display: none !important;}

/* skip-links */
.skip-links {
    position: absolute;

    a {
        position: absolute;
        left: -7000px;
        padding: 0.5em;
        background: black;
        color: white;
        text-decoration: none;

        &:focus {
            position: static;
        }
    }
}


/* -----------------------------
        layout and modules
   ----------------------------- */

/* switching box model for all elements */
* {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}

/* float layout */
/* module, gains superpower "BFC" Block Formating Context */
.mod {
    overflow: hidden;
}

/* blocks that needs to be placed under floats */
.clear,
.line,
.row {
    clear: both;
}

/* blocks that must contain floats */
.clearfix:after,
.line:after,
.mod:after {
    content: "";
    display: table;
    clear: both;
}

/* table layout */
.row {
    display: table;
    table-layout: fixed;
    width: 100%;
}
.row > *,
.col {
    display: table-cell;
    vertical-align: top;
}

/* inline-block */
.inbl {
    display: inline-block;
    vertical-align: top;
}

/* flexbox layout */
.flex {
    display : -webkit-box;
    display : -moz-box;
    display: -ms-flexbox;
    display : -webkit-flex;
    display : flex;
}
.flex-h {
    -webkit-box-orient: horizontal;
    -moz-box-orient: horizontal;
    -webkit-flex-direction: row;
    -ms-flex-direction: row;
    flex-direction: row;
}
.flex-v {
    -webkit-box-orient: vertical;
    -moz-box-orient: vertical;
    -webkit-flex-direction: column;
    -ms-flex-direction: column;
    flex-direction: column;
}
.flex-fluid {
    -moz-box-flex: 1;
    -webkit-flex: 1;
    -moz-flex: 1;
    -ms-flex: 1;
    flex: 1;
}
.flex-start {
    -webkit-box-ordinal-group: -1;
    -moz-box-ordinal-group: 0;
    -ms-flex-order : -1;
    -webkit-order : -1;
    -moz-order : -1;
    order : -1;
}
.flex-mid {
    -webkit-box-ordinal-group: 1;
    -moz-box-ordinal-group: 1;
    -ms-flex-order : 1;
    -webkit-order : 1;
    -moz-order : 1;
    order : 1;
}
.flex-end {
    -webkit-box-ordinal-group: 42;
    -moz-box-ordinal-group: 42;
    -ms-flex-order : 42;
    -webkit-order : 42;
    -moz-order : 42;
    order : 42;
}


/* ------------------------------
           alignments
   ------------------------------ */

/* left elements */
.left {
    float: left;
}
img.left {
    margin-right: 1em;
}

/* right elements */
.right {
    float: right;
}
img.right {
    margin-left: 1em;
}

img.left, img.right {
    margin-bottom: 5px;
}

.center    { margin-left: auto; margin-right: auto; }
.txtleft   { text-align: left; }
.txtright  { text-align: right; }
.txtcenter { text-align: center; }


/* ------------------------------
               grids
   ------------------------------ */

[class^=grid]:after {
    content: "";
    display: table;
    clear: both;
}
[class^=grid] > * {float: left; } /* direct childrens are floating */

.grid2 > * {.grid(2);}
.grid3 > * {.grid(3);}
.grid4 > * {.grid(4);}
.grid5 > * {.grid(5);}
.grid6 > * {.grid(6);}

.grid2 > * + *,
.grid3 > * + *,
.grid4 > * + *,
.grid5 > * + *,
.grid6 > * + *,
.grid2-1 > * + *,
.grid1-2 > * + *,
.grid3-1 > * + *,
.grid1-3 > * + * {
    margin-left: @gutter;
}
.grid2-1 > *,
.grid1-2 > * {
    width: (100%-@gutter) / 3;
}
.grid2-1 > :first-child,
.grid1-2 > * + * {
    width: (100%-@gutter) * 2 / 3;
}
.grid3-1 > *,
.grid1-3 > * {
    width: (100%-@gutter) / 4;
}
.grid3-1 > :first-child,
.grid1-3 > * + * {
    width: (100%-@gutter) * 3 / 4;
}


/* -----------------------------
            autogrids
   ----------------------------- */

/* auto-justified equal grids */

[class*="autogrid"] {
    text-align: justify;
    font-size: 1px; letter-spacing: -1px; /* whitespace fi xpart 1 */
}
[class*="autogrid"]:after {
    content: "";
    display: inline-block;
    width: 100%;
}
[class*="autogrid"] > * {
    display: inline-block;
    vertical-align: top;
    text-align: left;
    font-size: (@basefont + 0em);
    font-size: ((@basefont / 10) + 0rem);
    letter-spacing: normal; /* whitespace fix part 2 */
    *display: inline; *zoom: 1; /* ie6 / ie7 hack */
}
.autogrid2 > * {width: 49%}
.autogrid3 > * {width: 32%}
.autogrid4 > * {width: 23.6%}
.autogrid5 > * {width: 19%}
.autogrid6 > * {width: 15%}
.autogrid8 > * {width: 10.8%}
.autogrid10 > * {width: 9%}
.autogrid12 > * {width: 6.4%}

/* Responsiv-o-matic */

@media (max-width: @largescreen) {
    .autogrid5 > *,
    .autogrid6 > *,
    .autogrid8 > *,
    .autogrid10 > *,
    .autogrid12 > * {width: 32%}
}
@media (max-width: @smallscreen) {
    .autogrid3 > *,
    .autogrid4 > *,
    .autogrid5 > *,
    .autogrid6 > *,
    .autogrid8 > *,
    .autogrid10 > *,
    .autogrid12 > * {width: 49%}
}
@media (max-width: @tinyscreen) {
    [class*="autogrid"] > * {width: 100%}
}

/* blocks widths (percentage and pixels) */
.w10    { width: 10%; }
.w20    { width: 20%; }
.w25    { width: 25%; }
.w30    { width: 30%; }
.w33    { width: 33.3333%; }
.w40    { width: 40%; }
.w50    { width: 50%; }
.w60    { width: 60%; }
.w66    { width: 66.6666%; }
.w70    { width: 70%; }
.w75    { width: 75%; }
.w80    { width: 80%; }
.w90    { width: 90%; }
.w100   { width: 100%; }

.w50p   { width: 50px; }
.w100p  { width: 100px; }
.w150p  { width: 150px; }
.w200p  { width: 200px; }
.w300p  { width: 300px; }
.w400p  { width: 400px; }
.w500p  { width: 500px; }
.w600p  { width: 600px; }
.w700p  { width: 700px; }
.w800p  { width: 800px; }
.w960p  { width: 960px; }
.mw960p { max-width: 960px; }

/* spacing helpers
p,m = padding,margin
a,t,r,b,l = all,top,right,bottom,left
s,m,l,n = small(10px),medium(20px),large(30px),none(0)
source https://github.com/stubbornella/oocss/blob/master/core/spacing/space.css
*/
.m-reset, .ma0 { margin: 0; }
.p-reset, .pa0 { padding: 0; }
.ma1, .mas { margin: @smallvalue; }
.ma2, .mam { margin: @mediumvalue; }
.ma3, .mal { margin: @largevalue; }
.pa1, .pas { padding: @smallvalue; }
.pa2, .pam { padding: @mediumvalue; }
.pa3, .pal { padding: @largevalue; }

.mt0, .mtn { margin-top: 0; }
.mt1, .mts { margin-top: @smallvalue; }
.mt2, .mtm { margin-top: @mediumvalue; }
.mt3, .mtl { margin-top: @largevalue; }
.mr0, .mrn { margin-right: 0; }
.mr1, .mrs { margin-right: @smallvalue; }
.mr2, .mrm { margin-right: @mediumvalue; }
.mr3, .mrl { margin-right: @largevalue; }
.mb0, .mbn { margin-bottom: 0; }
.mb1, .mbs { margin-bottom: @smallvalue; }
.mb2, .mbm { margin-bottom: @mediumvalue; }
.mb3, .mbl { margin-bottom: @largevalue; }
.ml0, .mln { margin-left: 0; }
.ml1, .mls { margin-left: @smallvalue; }
.ml2, .mlm { margin-left: @mediumvalue; }
.ml3, .mll { margin-left: @largevalue; }

.pt0, .ptn { padding-top: 0; }
.pt1, .pts { padding-top: @smallvalue; }
.pt2, .ptm { padding-top: @mediumvalue; }
.pt3, .ptl { padding-top: @largevalue; }
.pr0, .prn { padding-right: 0; }
.pr1, .prs { padding-right: @smallvalue; }
.pr2, .prm { padding-right: @mediumvalue; }
.pr3, .prl { padding-right: @largevalue; }
.pb0, .pbn { padding-bottom: 0; }
.pb1, .pbs { padding-bottom: @smallvalue; }
.pb2, .pbm { padding-bottom: @mediumvalue; }
.pb3, .pbl { padding-bottom: @largevalue; }
.pl0, .pln { padding-left: 0; }
.pl1, .pls { padding-left: @smallvalue; }
.pl2, .plm { padding-left: @mediumvalue; }
.pl3, .pll { padding-left: @largevalue; }

/* hiding content */
.visually-hidden {
    position: absolute;
    left: -7000px;
    overflow: hidden;
}
[dir=rtl] .visually-hidden {
    left: auto;
    right: -7000px;
}

/* hidden on desktop */
.desktop-hidden { display: none; }
/* hidden on mobile */
.mobile-hidden { display: block; }


/* -----------------------------
               forms
   ----------------------------- */

form,
fieldset {
    border: none;
}
input,
button,
select,
label,
.btn {
    vertical-align: middle; /* @bugfix alignment */
    font-family: inherit;
    font-size: inherit;
}
textarea {
    resize: vertical;
    font-family: inherit;
    font-size: inherit;
}


/* -----------------------------
                iefix
   ----------------------------- */

/* haslayout for IE6/IE7 */
.ie67 .clearfix,
.ie67 .line,
.ie67 .mod,
.ie67 .row,
.ie67 .col {
    zoom: 1;
}

/* inline-block and table-cell for IE6/IE7 */
/* warning: .col needs width on IE6/IE7 */
.ie67 .btn,
.ie67 .col,
.ie67 .inbl {
    display: inline;
    zoom: 1;
}
.ie8 img {
    width: auto; /* @bugfix for IE8 */
}

/* Active box-sizing for IE6/IE7 */
/* @source https://github.com/Schepp/box-sizing-polyfill */
/*
.ie67 * {
    behavior: url(/js/boxsizing.htc);
}
*/


/* -----------------------------
              print
   ----------------------------- */

/* quick print reset */
@media print {
    p,
    blockquote {
        orphans: 2;
        widows: 2;
    }
    blockquote,
    ul,
    ol {
        page-break-inside: avoid;
    }
    h1,
    h2,
    h3,
    caption {
        page-break-after: avoid;
    }
}


/* -----------------------------
          own stylesheet
   ----------------------------- */

/* Here should go your own CSS styles */
/* You can link them with an @import or, better for webperf, just paste them here */

/* @import url(my-styles.css); */


/* -----------------------------
     desktop and retina medias
   ----------------------------- */

@media (min-width: @smallscreen) {
    /* here go rules for big resources and big screens like: background-images, font-faces, etc. */
}
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi), (min-resolution: 2dppx) {
    /* Style adjustments for retina devices */
}


/* ----------------------------------
    Responsive large / medium / tiny
   ---------------------------------- */

@media (min-width: @largescreen) {

    /* layouts for large (l) screens */
    .large-hidden,
    .tablet-hidden { display: none !important; }
    .large-visible { display: block !important; }
    .large-no-float {float: none; }
    .large-inbl {
        display: inline-block;
        float: none;
        vertical-align: top;
    }
    .large-row {
        display: table;
        table-layout: fixed;
        width: 100% !important;
    }
    .large-col {
        display: table-cell;
        vertical-align: top;
    }

    /* widths for large (l) screens */
    .large-w25 { width: 25% !important; }
    .large-w33 { width: 33.3333% !important; }
    .large-w50 { width: 50% !important; }
    .large-w66 { width: 66.6666% !important; }
    .large-w75 { width: 75% !important; }
    .large-w100 {
        display: block !important;
        float: none !important;
        clear: none !important;
        width: auto !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        border: 0;
    }

    /* margins for large (l) screens */
    .large-ma0 { margin: 0 !important; }
}

@media (max-width: @smallscreen) {

    /* quick tablet reset */
    .w600p,
    .w700p,
    .w800p,
    .w960p,
    .mw960p,
    .small-wauto {
        width: auto;
        float: none;
    }

    /* layouts for medium (m) screens */
    .small-hidden,
    .tablet-hidden { display: none !important; }
    .small-visible { display: block !important; }
    .small-no-float {float: none; }
    .small-inbl {
        display: inline-block;
        float: none;
        vertical-align: top;
    }
    .small-row {
        display: table !important;
        table-layout: fixed !important;
        width: 100% !important;
    }
    .small-col {
        display: table-cell !important;
        vertical-align: top !important;
    }

    /* you shall not pass */
    div, textarea, table, td, th, code, pre, samp {
        word-wrap: break-word;
        -webkit-hyphens: auto;
        -moz-hyphens: auto;
        -ms-hyphens: auto;
        -o-hyphens: auto;
        hyphens: auto;
    }

    /* widths for small (s) screens */
    .small-w25 { width: 25% !important; }
    .small-w33 { width: 33.3333% !important; }
    .small-w50 { width: 50% !important; }
    .small-w66 { width: 66.6666% !important; }
    .small-w75 { width: 75% !important; }
    .small-w100  {
        display: block !important;
        float: none !important;
        clear: none !important;
        width: auto !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        border: 0;
    }
    /* margins for small (s) screens */
    .small-ma0 { margin: 0 !important; }

    /* Responsive grids */
    .grid4 > * {.grid(2);}
    .grid4 > :first-child + * + * {margin-left: 0}

    .grid6 > * {.grid(3);}
    .grid6 > :first-child + * + * + * {margin-left: 0}
}

@media (max-width: @tinyscreen) {

    /* quick smartphone reset */
    .mod,
    .col,
    fieldset {
        display: block !important;
        float: none !important;
        clear: none !important;
        width: auto !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        border: 0;
    }
    .w300p,
    .w400p,
    .w500p {
        width: auto;
        float: none;
    }
    .row {
        display: block !important;
        width: 100% !important;
    }

    /* layouts for tiny (t) screens */
    .tiny-hidden,
    .phone-hidden { display: none !important; }
    .tiny-visible { display: block !important; }
    .tiny-no-float {float: none;}
    .tiny-inbl {
        display: inline-block;
        float: none;
        vertical-align: top;
    }
    .tiny-row {
        display: table !important;
        table-layout: fixed !important;
        width: 100% !important;
    }
    .tiny-col {
        display: table-cell !important;
        vertical-align: top !important;
    }
    th,
    td {
        display: block !important;
        width: auto !important;
        text-align: left !important;
    }
    thead { display: none; }

    /* widths for tiny (t) screens */
    .tiny-w25 { width: 25% !important; }
    .tiny-w33 { width: 33.3333% !important; }
    .tiny-w50 { width: 50% !important; }
    .tiny-w66 { width: 66.6666% !important; }
    .tiny-w75 { width: 75% !important; }
    .tiny-w100 {
        display: block !important;
        float: none !important;
        clear: none !important;
        width: auto !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        border: 0;
    }
    /* margins for tiny (t) screens */
    .tiny-ma0 { margin: 0 !important; }
}

/* orientation iOS font-size fix */
@media (orientation: landscape) and (max-device-width: @smallscreen) {
    html,
    body {
        -webkit-text-size-adjust: 100%;
    }
}