Generated by SassMeister.com.

SassMeister-input-HTML.html

<div class="grid-items">
  <a href="javascript:void(0)" class="grid-item">
    <img src="https://raw.github.com/Magnus-G/Random/master/placeholder_logo_1.png" alt="">
    <h1>Grid Item</h1>
    <p>Lorem ipsum dolor sit amet, elit. Rem, illum.</p>
  </a>
  <a href="javascript:void(0)" class="grid-item grid-item-big grid-item-image">
    <img src="https://raw.github.com/Magnus-G/Random/master/placeholder_logo_2.png" alt="">
    <h1>Grid Item With an Image</h1>
    <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Rem, illum.</p>
  </a>
  <a href="javascript:void(0)" class="grid-item grid-item-big">
    <img src="https://raw.github.com/Magnus-G/Random/master/placeholder_logo_3.png" alt="">
    <h1>Another Wide Item</h1>
    <p>Lorem ipsum consectetur dolor sit amet, consectetur adipisicing elit. Rem, illum.</p>
  </a>
  <a href="javascript:void(0)" class="grid-item">
    <img src="https://raw.github.com/Magnus-G/Random/master/placeholder_logo_2.png" alt="">
    <h1>Last Grid Item</h1>
    <p>Lorem ipsum dolor sit amet, elit. Rem, illum.</p>
  </a>
  <a href="javascript:void(0)" class="grid-item">
    <img src="https://raw.github.com/Magnus-G/Random/master/placeholder_logo_2.png" alt="">
    <h1>Last Grid Item</h1>
    <p>Lorem ipsum dolor sit amet, elit. Rem, illum.</p>
  </a>
  <a href="javascript:void(0)" class="grid-item">
    <img src="https://raw.github.com/Magnus-G/Random/master/placeholder_logo_3.png" alt="">
    <h1>A Grid Item</h1>
    <p>Lorem ipsum dolor sit amet, elit. Rem, illum.</p>
  </a>
  <a href="javascript:void(0)" class="grid-item">
    <img src="https://raw.github.com/Magnus-G/Random/master/placeholder_logo_1.png" alt="">
    <h1>Item</h1>
    <p>Lorem ipsum dolor sit amet, elit. Rem, illum.</p>
  </a>
</div>

SassMeister-input.scss

// ----
// Sass (v3.3.5)
// Compass (v1.0.0.alpha.18)
// Bitters (v)
// Bourbon (v)
// Neat (v)
// ----

@import "bourbon/bourbon";
@import "neat/neat";
@import "bitters/bitters";

$large-screen: 10em;
$medium-screen: 8em;

@mixin grid-item-columns($columns) {
  width: (100% / 12) * $columns;
}

.grid-items {
  $grid-items-background: $base-body-color;
  $grid-item-background: desaturate($base-accent-color, 30); 
  $grid-item-colors: 
    desaturate($base-accent-color, 30), 
    #3581A5, 
    #5FBEBE,
    #98C79A,
    #A7A891, 
    #BDCC97,
    #979EA0;
  $grid-item-border-size: 9px;
  $grid-item-columns: 4;
  $grid-item-big-columns: 8;
  $grid-item-color: white;
  $grid-item-height: 14em;

  @include clearfix;
    
  .grid-item {
    @include transition (all 0.2s ease-in-out);
    height: $grid-item-height;
    background: $grid-item-background;
    width: 100%;
    overflow: hidden;
    float: left;
    padding: 2em;
    border-top: 0;
    border-bottom: $grid-item-border-size solid $grid-items-background;
    border-left: $grid-item-border-size /2 solid $grid-items-background;
    border-right: $grid-item-border-size /2 solid $grid-items-background;
    text-align: center;
    cursor: pointer;

    @include media($large-screen) {
      @include grid-item-columns($grid-item-columns);
    }

    @for $i from 1 to 8 { // assign colors from $grid-item-colors list
      &:nth-child(#{$i}) {
        $background-from-list: nth($grid-item-colors, $i);
        background-color: $background-from-list;
        box-shadow: inset 0px 0px 1px 2px darken($background-from-list, 10);
        &:hover {
          background-color: darken($background-from-list, 10);
          background-repeat: no-repeat;
          background-position: top;
          background-size: cover;
        }
      }
    }
  }

  .grid-item img {
      display: block;
      height: 3em;
      margin: auto;
      margin-bottom: 1em;
    }

  .grid-item h1 {
      color: $grid-item-color;
      font-size: 1.3em;
      margin-bottom: .4em;
    }

  .grid-item p {
      margin: auto;
      color: transparentize($grid-item-color, .3);
      @include media($medium-screen) {
        max-width: 70%;
      }
    }

  .grid-item-big {
    @include media($large-screen) {
      @include grid-item-columns($grid-item-big-columns);
    }
    p {
      @include media($medium-screen) {
        max-width: 60%;
      }  
    }
  }

  .grid-item-image {
    background: url(https://raw.github.com/Magnus-G/Random/master/lake-transparent.png);
    background-color: $grid-item-background;
    background-repeat: no-repeat;
    background-position: top;
    background-size: cover;
  }
}

SassMeister-output.css

* {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
}

button,
input[type="submit"] {
  border: 1px solid #2459a6;
  border-radius: 3px;
  box-shadow: inset 0 1px 0 0 #89a8d5;
  color: white;
  display: inline-block;
  font-size: inherit;
  font-weight: bold;
  background-color: #477dca;
  background-image: -webkit-linear-gradient(#477dca, #2760b2);
  background-image: linear-gradient(#477dca, #2760b2);
  padding: 7px 18px;
  text-decoration: none;
  text-shadow: 0 1px 0 #1b4f9a;
  background-clip: padding-box;
  font-size: 1em;
}
button:hover:not(:disabled),
input[type="submit"]:hover:not(:disabled) {
  box-shadow: inset 0 1px 0 0 #628cc8;
  cursor: pointer;
  background-color: #3c71bb;
  background-image: -webkit-linear-gradient(#3c71bb, #255aa5);
  background-image: linear-gradient(#3c71bb, #255aa5);
}
button:active:not(:disabled),
input[type="submit"]:active:not(:disabled) {
  border: 1px solid #2459a6;
  box-shadow: inset 0 0 8px 4px #235397, inset 0 0 8px 4px #235397, 0 1px 1px 0 #eeeeee;
}
button:disabled,
input[type="submit"]:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

body {
  color: #333333;
  font-family: "Helvetica Neue", Helvetica, Roboto, Arial, sans-serif;
  font-size: 1em;
  -webkit-font-smoothing: antialiased;
  line-height: 1.5em;
}

h1, h2, h3, h4, h5, h6 {
  font-family: "Helvetica Neue", Helvetica, Roboto, Arial, sans-serif;
  line-height: 1.25em;
  margin: 0;
  text-rendering: optimizeLegibility;
}

h1 {
  font-size: 2.25em;
}

h2 {
  font-size: 2em;
}

h3 {
  font-size: 1.75em;
}

h4 {
  font-size: 1.5em;
}

h5 {
  font-size: 1.25em;
}

h6 {
  font-size: 1em;
}

p {
  margin: 0 0 0.75em;
}

a {
  color: #477dca;
  text-decoration: none;
  -webkit-transition: color 0.1s linear;
  -moz-transition: color 0.1s linear;
  transition: color 0.1s linear;
}
a:hover {
  color: #2c5999;
}
a:active, a:focus {
  color: #2c5999;
  outline: none;
}

hr {
  border-bottom: 1px solid #dddddd;
  border-left: none;
  border-right: none;
  border-top: none;
  margin: 1.5em 0;
}

img {
  margin: 0;
  max-width: 100%;
}

abbr, acronym {
  border-bottom: 1px dotted #dddddd;
  cursor: help;
}

address {
  display: block;
  margin: 0 0 0.75em;
}

hgroup {
  margin-bottom: 0.75em;
}

del {
  color: #595959;
}

blockquote {
  border-left: 2px solid #dddddd;
  color: #595959;
  margin: 1.5em 0;
  padding-left: 0.75em;
}

cite {
  color: #737373;
  font-style: italic;
}
cite:before {
  content: '\2014 \00A0';
}

fieldset {
  background: #f7f7f7;
  border: 1px solid #dddddd;
  margin: 0 0 0.75em 0;
  padding: 1.5em;
}

input,
label,
select {
  display: block;
  font-family: "Helvetica Neue", Helvetica, Roboto, Arial, sans-serif;
  font-size: 1em;
}

label {
  font-weight: bold;
  margin-bottom: 0.375em;
}
label.required:after {
  content: "*";
}
label abbr {
  display: none;
}

textarea,
input[type="email"], input[type="number"], input[type="password"], input[type="search"], input[type="tel"], input[type="text"], input[type="url"], input[type="color"], input[type="date"], input[type="datetime"], input[type="datetime-local"], input[type="month"], input[type="time"], input[type="week"] {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
  -webkit-transition: border-color;
  -moz-transition: border-color;
  transition: border-color;
  background-color: white;
  border-radius: 0.1875em;
  border: 1px solid #dddddd;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.06);
  font-family: "Helvetica Neue", Helvetica, Roboto, Arial, sans-serif;
  font-size: 1em;
  margin-bottom: 0.75em;
  padding: 0.5em 0.5em;
  resize: vertical;
  width: 100%;
}
textarea:hover,
input[type="email"]:hover, input[type="number"]:hover, input[type="password"]:hover, input[type="search"]:hover, input[type="tel"]:hover, input[type="text"]:hover, input[type="url"]:hover, input[type="color"]:hover, input[type="date"]:hover, input[type="datetime"]:hover, input[type="datetime-local"]:hover, input[type="month"]:hover, input[type="time"]:hover, input[type="week"]:hover {
  border-color: #c4c4c4;
}
textarea:focus,
input[type="email"]:focus, input[type="number"]:focus, input[type="password"]:focus, input[type="search"]:focus, input[type="tel"]:focus, input[type="text"]:focus, input[type="url"]:focus, input[type="color"]:focus, input[type="date"]:focus, input[type="datetime"]:focus, input[type="datetime-local"]:focus, input[type="month"]:focus, input[type="time"]:focus, input[type="week"]:focus {
  border-color: #477dca;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.06), 0 0 5px rgba(55, 112, 192, 0.7);
  outline: none;
}

input[type="search"] {
  -webkit-appearance: none;
  -moz-appearance: none;
  -ms-appearance: none;
  -o-appearance: none;
  appearance: none;
}

input[type="checkbox"], input[type="radio"] {
  display: inline;
  margin-right: 0.375em;
}

input[type="file"] {
  width: 100%;
}

select {
  width: auto;
  margin-bottom: 1.5em;
}

button,
input[type="submit"] {
  -webkit-appearance: none;
  -moz-appearance: none;
  -ms-appearance: none;
  -o-appearance: none;
  appearance: none;
  cursor: pointer;
  user-select: none;
  vertical-align: middle;
  white-space: nowrap;
}

table {
  border-collapse: collapse;
  margin: 0.75em 0;
  table-layout: fixed;
  width: 100%;
}

th {
  border-bottom: 1px solid #b7b7b7;
  font-weight: bold;
  padding: 0.75em 0;
  text-align: left;
}

td {
  border-bottom: 1px solid #dddddd;
  padding: 0.75em 0;
}

tr, td, th {
  vertical-align: middle;
}

ul, ol {
  margin: 0;
  padding: 0;
  list-style-type: none;
}
dl {
  line-height: 1.5em;
  margin-bottom: 0.75em;
}
dl dt {
  font-weight: bold;
  margin-top: 0.75em;
}
dl dd {
  margin: 0;
}

.error, #flash_failure {
  background: #fbe3e4;
  color: #96151b;
  font-weight: bold;
  margin-bottom: 0.75em;
  padding: 0.75em;
}
.error a, #flash_failure a {
  color: #6a0f13;
}
.error a:hover, #flash_failure a:hover {
  color: #110203;
}

.notice, #flash_notice {
  background: #fff6bf;
  color: #8c7800;
  font-weight: bold;
  margin-bottom: 0.75em;
  padding: 0.75em;
}
.notice a, #flash_notice a {
  color: #594c00;
}
.notice a:hover, #flash_notice a:hover {
  color: black;
}

.success, #flash_success {
  background: #e6efc2;
  color: #56651a;
  font-weight: bold;
  margin-bottom: 0.75em;
  padding: 0.75em;
}
.success a, #flash_success a {
  color: #333c10;
}
.success a:hover, #flash_success a:hover {
  color: black;
}

.grid-items:after {
  content: "";
  display: table;
  clear: both;
}
.grid-items .grid-item {
  -webkit-transition: all 0.2s ease-in-out;
  -moz-transition: all 0.2s ease-in-out;
  transition: all 0.2s ease-in-out;
  height: 14em;
  background: #6b83a6;
  width: 100%;
  overflow: hidden;
  float: left;
  padding: 2em;
  border-top: 0;
  border-bottom: 9px solid white;
  border-left: 4.5px solid white;
  border-right: 4.5px solid white;
  text-align: center;
  cursor: pointer;
}
@media screen and (min-width: 10em) {
  .grid-items .grid-item {
    width: 33.33333%;
  }
}
.grid-items .grid-item:nth-child(1) {
  background-color: #6b83a6;
  box-shadow: inset 0px 0px 1px 2px #536a8b;
}
.grid-items .grid-item:nth-child(1):hover {
  background-color: #536a8b;
  background-repeat: no-repeat;
  background-position: top;
  background-size: cover;
}
.grid-items .grid-item:nth-child(2) {
  background-color: #3581a5;
  box-shadow: inset 0px 0px 1px 2px #29637e;
}
.grid-items .grid-item:nth-child(2):hover {
  background-color: #29637e;
  background-repeat: no-repeat;
  background-position: top;
  background-size: cover;
}
.grid-items .grid-item:nth-child(3) {
  background-color: #5fbebe;
  box-shadow: inset 0px 0px 1px 2px #44a6a6;
}
.grid-items .grid-item:nth-child(3):hover {
  background-color: #44a6a6;
  background-repeat: no-repeat;
  background-position: top;
  background-size: cover;
}
.grid-items .grid-item:nth-child(4) {
  background-color: #98c79a;
  box-shadow: inset 0px 0px 1px 2px #77b57a;
}
.grid-items .grid-item:nth-child(4):hover {
  background-color: #77b57a;
  background-repeat: no-repeat;
  background-position: top;
  background-size: cover;
}
.grid-items .grid-item:nth-child(5) {
  background-color: #a7a891;
  box-shadow: inset 0px 0px 1px 2px #909175;
}
.grid-items .grid-item:nth-child(5):hover {
  background-color: #909175;
  background-repeat: no-repeat;
  background-position: top;
  background-size: cover;
}
.grid-items .grid-item:nth-child(6) {
  background-color: #bdcc97;
  box-shadow: inset 0px 0px 1px 2px #a7bb75;
}
.grid-items .grid-item:nth-child(6):hover {
  background-color: #a7bb75;
  background-repeat: no-repeat;
  background-position: top;
  background-size: cover;
}
.grid-items .grid-item:nth-child(7) {
  background-color: #979ea0;
  box-shadow: inset 0px 0px 1px 2px #7c8588;
}
.grid-items .grid-item:nth-child(7):hover {
  background-color: #7c8588;
  background-repeat: no-repeat;
  background-position: top;
  background-size: cover;
}
.grid-items .grid-item img {
  display: block;
  height: 3em;
  margin: auto;
  margin-bottom: 1em;
}
.grid-items .grid-item h1 {
  color: white;
  font-size: 1.3em;
  margin-bottom: .4em;
}
.grid-items .grid-item p {
  margin: auto;
  color: rgba(255, 255, 255, 0.7);
}
@media screen and (min-width: 8em) {
  .grid-items .grid-item p {
    max-width: 70%;
  }
}
@media screen and (min-width: 10em) {
  .grid-items .grid-item-big {
    width: 66.66667%;
  }
}
@media screen and (min-width: 8em) {
  .grid-items .grid-item-big p {
    max-width: 60%;
  }
}
.grid-items .grid-item-image {
  background: url(https://raw.github.com/Magnus-G/Random/master/lake-transparent.png);
  background-color: #6b83a6;
  background-repeat: no-repeat;
  background-position: top;
  background-size: cover;
}

SassMeister-rendered.html

<div class="grid-items">
  <a href="javascript:void(0)" class="grid-item">
    <img src="https://raw.github.com/Magnus-G/Random/master/placeholder_logo_1.png" alt="">
    <h1>Grid Item</h1>
    <p>Lorem ipsum dolor sit amet, elit. Rem, illum.</p>
  </a>
  <a href="javascript:void(0)" class="grid-item grid-item-big grid-item-image">
    <img src="https://raw.github.com/Magnus-G/Random/master/placeholder_logo_2.png" alt="">
    <h1>Grid Item With an Image</h1>
    <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Rem, illum.</p>
  </a>
  <a href="javascript:void(0)" class="grid-item grid-item-big">
    <img src="https://raw.github.com/Magnus-G/Random/master/placeholder_logo_3.png" alt="">
    <h1>Another Wide Item</h1>
    <p>Lorem ipsum consectetur dolor sit amet, consectetur adipisicing elit. Rem, illum.</p>
  </a>
  <a href="javascript:void(0)" class="grid-item">
    <img src="https://raw.github.com/Magnus-G/Random/master/placeholder_logo_2.png" alt="">
    <h1>Last Grid Item</h1>
    <p>Lorem ipsum dolor sit amet, elit. Rem, illum.</p>
  </a>
  <a href="javascript:void(0)" class="grid-item">
    <img src="https://raw.github.com/Magnus-G/Random/master/placeholder_logo_2.png" alt="">
    <h1>Last Grid Item</h1>
    <p>Lorem ipsum dolor sit amet, elit. Rem, illum.</p>
  </a>
  <a href="javascript:void(0)" class="grid-item">
    <img src="https://raw.github.com/Magnus-G/Random/master/placeholder_logo_3.png" alt="">
    <h1>A Grid Item</h1>
    <p>Lorem ipsum dolor sit amet, elit. Rem, illum.</p>
  </a>
  <a href="javascript:void(0)" class="grid-item">
    <img src="https://raw.github.com/Magnus-G/Random/master/placeholder_logo_1.png" alt="">
    <h1>Item</h1>
    <p>Lorem ipsum dolor sit amet, elit. Rem, illum.</p>
  </a>
</div>