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HTML 

              
                <div class="container">
        <header>
            <hgroup>
              <h1 class="page-title">Flattastic Pro Color Palette</h1>
              <h2 class="page-description">design by <a href="https://dribbble.com/erigon">Erigon</a></h2>
            </hgroup>
        </header>
        <ul class="list-palete">
            <li class="palete">
                <div class="palete-color palete-color--grapefruit">
                    <div class="palete-color__square palete-color__lighten"></div>
                    <div class="palete-color__square palete-color__darken"></div>
                </div>
                <div class="palete-color__content">
                    <h1 class="palete-color__name">Grapefruit</h1>
                    <span class="palete-color__code">#ed5565</span>,
                    <span class="palete-color__code">#da4453</span>
                </div>
            </li>
            <li class="palete">
                <div class="palete-color palete-color--bittersweet">
                    <div class="palete-color__square palete-color__lighten"></div>
                    <div class="palete-color__square palete-color__darken"></div>
                </div>
                <div class="palete-color__content">
                    <h1 class="palete-color__name">Bittersweet</h1>
                    <span class="palete-color__code">#fc6e51</span>,
                    <span class="palete-color__code">#e9573f</span>
                </div>
            </li>
            <li class="palete">
                <div class="palete-color palete-color--sunflower">
                    <div class="palete-color__square palete-color__lighten"></div>
                    <div class="palete-color__square palete-color__darken"></div>
                </div>
                <div class="palete-color__content">
                    <h1 class="palete-color__name">Sunflower</h1>
                    <span class="palete-color__code">#ffce54</span>,
                    <span class="palete-color__code">#fcbb42</span>
                </div>
            </li>
            <li class="palete">
                <div class="palete-color palete-color--grass">
                    <div class="palete-color__square palete-color__lighten"></div>
                    <div class="palete-color__square palete-color__darken"></div>
                </div>
                <div class="palete-color__content">
                    <h1 class="palete-color__name">Grass</h1>
                    <span class="palete-color__code">#a0d468</span>,
                    <span class="palete-color__code">#8cc152</span>
                </div>
            </li>
            <li class="palete">
                <div class="palete-color palete-color--mint">
                    <div class="palete-color__square palete-color__lighten"></div>
                    <div class="palete-color__square palete-color__darken"></div>
                </div>
                <div class="palete-color__content">
                    <h1 class="palete-color__name">Mint</h1>
                    <span class="palete-color__code">#48cfad</span>,
                    <span class="palete-color__code">#37bc9b</span>
                </div>
            </li>
            <li class="palete">
                <div class="palete-color palete-color--aqua">
                    <div class="palete-color__square palete-color__lighten"></div>
                    <div class="palete-color__square palete-color__darken"></div>
                </div>
                <div class="palete-color__content">
                    <h1 class="palete-color__name">Aqua</h1>
                    <span class="palete-color__code">#4fc1e9</span>,
                    <span class="palete-color__code">#3bafda</span>
                </div>
            </li>
            <li class="palete">
                <div class="palete-color palete-color--blue-jeans">
                    <div class="palete-color__square palete-color__lighten"></div>
                    <div class="palete-color__square palete-color__darken"></div>
                </div>
                <div class="palete-color__content">
                    <h1 class="palete-color__name">Blue Jeans</h1>
                    <span class="palete-color__code">#5d9cec</span>,
                    <span class="palete-color__code">#4a89dc</span>
                </div>
            </li>
            <li class="palete">
                <div class="palete-color palete-color--lavender">
                    <div class="palete-color__square palete-color__lighten"></div>
                    <div class="palete-color__square palete-color__darken"></div>
                </div>
                <div class="palete-color__content">
                    <h1 class="palete-color__name">Lavender</h1>
                    <span class="palete-color__code">#ac92ec</span>,
                    <span class="palete-color__code">#967adc</span>
                </div>
            </li>
            <li class="palete">
                <div class="palete-color palete-color--pink-rose">
                    <div class="palete-color__square palete-color__lighten"></div>
                    <div class="palete-color__square palete-color__darken"></div>
                </div>
                <div class="palete-color__content">
                    <h1 class="palete-color__name">Pink Rose</h1>
                    <span class="palete-color__code">#ec87c0</span>,
                    <span class="palete-color__code">#d770ad</span>
                </div>
            </li>
            <li class="palete">
                <div class="palete-color palete-color--light-gray">
                    <div class="palete-color__square palete-color__lighten"></div>
                    <div class="palete-color__square palete-color__darken"></div>
                </div>
                <div class="palete-color__content">
                    <h1 class="palete-color__name">Light Gray</h1>
                    <span class="palete-color__code">#f5f7fa</span>,
                    <span class="palete-color__code">#e6e9ed</span>
                </div>
            </li>
            <li class="palete">
                <div class="palete-color palete-color--medium-gray">
                    <div class="palete-color__square palete-color__lighten"></div>
                    <div class="palete-color__square palete-color__darken"></div>
                </div>
                <div class="palete-color__content">
                    <h1 class="palete-color__name">Medium Gray</h1>
                    <span class="palete-color__code">#ccd1d9</span>,
                    <span class="palete-color__code">#aab2bd</span>
                </div>
            </li>
            <li class="palete">
                <div class="palete-color palete-color--dark-gray">
                    <div class="palete-color__square palete-color__lighten"></div>
                    <div class="palete-color__square palete-color__darken"></div>
                </div>
                <div class="palete-color__content">
                    <h1 class="palete-color__name">Dark Gray</h1>
                    <span class="palete-color__code">#656d78</span>,
                    <span class="palete-color__code">#434a54</span>
                </div>
            </li>
           <!-- Round -->
            <li class="palete palete--round">
                <div class="palete-color palete-color--sunflower">
                    <div class="palete-color__square palete-color__lighten"></div>
                    <div class="palete-color__square palete-color__darken"></div>
                </div>
                <div class="palete-color__content">
                    <h1 class="palete-color__name">Sunflower</h1>
                    <span class="palete-color__code">#ffce54</span>,
                    <span class="palete-color__code">#fcbb42</span>
                </div>
            </li>
            <li class="palete palete--round">
                <div class="palete-color palete-color--grass">
                    <div class="palete-color__square palete-color__lighten"></div>
                    <div class="palete-color__square palete-color__darken"></div>
                </div>
                <div class="palete-color__content">
                    <h1 class="palete-color__name">Grass</h1>
                    <span class="palete-color__code">#a0d468</span>,
                    <span class="palete-color__code">#8cc152</span>
                </div>
            </li>
            <!-- Square -->
            <li class="palete palete--square">
                <div class="palete-color palete-color--mint">
                    <div class="palete-color__square palete-color__lighten"></div>
                    <div class="palete-color__square palete-color__darken"></div>
                </div>
                <div class="palete-color__content">
                    <h1 class="palete-color__name">Mint</h1>
                    <span class="palete-color__code">#48cfad</span>,
                    <span class="palete-color__code">#37bc9b</span>
                </div>
            </li>
            <li class="palete palete--square">
                <div class="palete-color palete-color--aqua">
                    <div class="palete-color__square palete-color__lighten"></div>
                    <div class="palete-color__square palete-color__darken"></div>
                </div>
                <div class="palete-color__content">
                    <h1 class="palete-color__name">Aqua</h1>
                    <span class="palete-color__code">#4fc1e9</span>,
                    <span class="palete-color__code">#3bafda</span>
                </div>
            </li>
        </ul>
        
        <ul class="list-palete">
          <!-- Round -->
            <li class="palete palete--round">
                <div class="palete-color palete-color--sunflower">
                    <div class="palete-color__square palete-color__lighten"></div>
                    <div class="palete-color__square palete-color__darken"></div>
                </div>
                <div class="palete-color__content">
                    <h1 class="palete-color__name">Sunflower</h1>
                    <span class="palete-color__code">#ffce54</span>,
                    <span class="palete-color__code">#fcbb42</span>
                </div>
            </li>
            <li class="palete palete--round">
                <div class="palete-color palete-color--grass">
                    <div class="palete-color__square palete-color__lighten"></div>
                    <div class="palete-color__square palete-color__darken"></div>
                </div>
                <div class="palete-color__content">
                    <h1 class="palete-color__name">Grass</h1>
                    <span class="palete-color__code">#a0d468</span>,
                    <span class="palete-color__code">#8cc152</span>
                </div>
            </li>
            <!-- Square -->
            <li class="palete palete--square">
                <div class="palete-color palete-color--mint">
                    <div class="palete-color__square palete-color__lighten"></div>
                    <div class="palete-color__square palete-color__darken"></div>
                </div>
                <div class="palete-color__content">
                    <h1 class="palete-color__name">Mint</h1>
                    <span class="palete-color__code">#48cfad</span>,
                    <span class="palete-color__code">#37bc9b</span>
                </div>
            </li>
            <li class="palete palete--square">
                <div class="palete-color palete-color--aqua">
                    <div class="palete-color__square palete-color__lighten"></div>
                    <div class="palete-color__square palete-color__darken"></div>
                </div>
                <div class="palete-color__content">
                    <h1 class="palete-color__name">Aqua</h1>
                    <span class="palete-color__code">#4fc1e9</span>,
                    <span class="palete-color__code">#3bafda</span>
                </div>
            </li>
        </ul>
  
  
      <div class="examples">
        <div class="palete example example--rectangle">
              <div class="palete-color palete-color--sunflower">
                  <div class="palete-color__square palete-color__lighten"></div>
                  <div class="palete-color__square palete-color__darken"></div>
              </div>
              <div class="palete-color__content">
                  <h1 class="palete-color__name">Sunflower</h1>
                  <span class="palete-color__code">#ffce54</span>,
                  <span class="palete-color__code">#fcbb42</span>
              </div>
          </div>
  <div class="palete palete--round example example--round">
              <div class="palete-color palete-color--sunflower">
                  <div class="palete-color__square palete-color__lighten"></div>
                  <div class="palete-color__square palete-color__darken"></div>
              </div>
              <div class="palete-color__content">
                  <h1 class="palete-color__name">Sunflower</h1>
                  <span class="palete-color__code">#ffce54</span>,
                  <span class="palete-color__code">#fcbb42</span>
              </div>
          </div>
  <div class="palete palete--square example example--square">
              <div class="palete-color palete-color--sunflower">
                  <div class="palete-color__square palete-color__lighten"></div>
                  <div class="palete-color__square palete-color__darken"></div>
              </div>
              <div class="palete-color__content">
                  <h1 class="palete-color__name">Sunflower</h1>
                  <span class="palete-color__code">#ffce54</span>,
                  <span class="palete-color__code">#fcbb42</span>
              </div>
          </div>
        
        </div> <!-- /.examples -->
  
    </div>
!

CSS 

              
                    @import url(https://fonts.googleapis.com/css?family=Source+Sans+Pro:400,600,700);

    *, 
    *::before,
    *::after {
    -webkit-box-sizing: border-box;
       -moz-box-sizing: border-box;
            box-sizing: border-box;
    }

    * {
        padding: 0;
        margin: 0;
        list-style: none;
        line-height: 1em;
    }

    header {
        text-align: center;
        margin-bottom: 2em;
    }

    body {
        font-family: "Source Sans Pro";
        background-color: #f0f2f5;
    }

    .page-title {
        margin: 2em 0 .2em;
        font-size: 20px;
        text-transform: uppercase;
        line-height: 1.4;
        color: #434a54;
    }

    .page-description {
        font-size: 13px;
        font-weight: normal;
        color: #aab2bd;
    }
    .page-description a {
        color: #ec87c0;
        text-decoration: none;
    }
    .page-description a:hover {
        color: #d770ad;
    }


    .container {
        width: 780px;
        margin: 0 auto;
    }

    .palete {
        border-radius: 5px;
        background-color: #fff;
        -webkit-box-shadow: 0px 3px 0px 0px rgba(226, 228, 231, 0.75);
        -moz-box-shadow:    0px 3px 0px 0px rgba(226, 228, 231, 0.75);
        box-shadow:         0px 3px 0px 0px rgba(226, 228, 231, 0.75);
    }

    .palete-color {
      position: relative;
    }
    .palete-color,
    .palete-color__square {
        height: 50px;
    }

    .palete-color__square {
        width: 50%;
        float: left;
    }
    .palete-color__square:hover {
      width: 100%;
      position: absolute;
    }

    .palete-color__lighten {
        -webkit-border-top-left-radius: 5px;
        -moz-border-radius-topleft: 5px;
        border-top-left-radius: 5px;
    }
    .palete-color__square.palete-color__lighten:hover  {
       -webkit-border-top-right-radius: 5px;
        -moz-border-radius-topright: 5px;
        border-top-right-radius: 5px;
    }
    .palete-color__darken {
        float: right;
        -webkit-border-top-right-radius: 5px;
        -moz-border-radius-topright: 5px;
        border-top-right-radius: 5px;
    }
    .palete-color__square.palete-color__darken:hover {
        -webkit-border-top-left-radius: 5px;
        -moz-border-radius-topleft: 5px;
        border-top-left-radius: 5px;
    }
    .palete-color__content {
        padding: 10px;
        color: #a9abab;
    }
    .palete-color__name {
        font-size: 12px;
        font-weight: medium;
        text-transform: uppercase;
        color: #444545;
    }
    .palete-color__code {
        font-size: 11px;
        line-height: .8em;
        text-transform: uppercase;
    }

    /* ############
       STYLES
       ############ */
    
    /* Round */
    .palete--round {
      border-radius: 50%;
      text-align: center;
    }
    .palete--round .palete-color {
      height: 50%;
    }
    .palete--round .palete-color__square {
      height: 100%;
    }
    .palete--round .palete-color__lighten {
      border-top-left-radius: 100%;
    }
    .palete--round .palete-color__square.palete-color__lighten:hover {
      -webkit-border-radius: 1000px 1000px 0 0;
      -moz-border-radius: 1000px 1000px 0 0;
      border-radius: 1000px 1000px 0 0;
      /* Border-radius Greater or equal to width*/
    }
    .palete--round .palete-color__darken {
      border-top-right-radius: 100%;
    }
    .palete--round .palete-color__square.palete-color__darken:hover {
      -webkit-border-radius: 1000px 1000px 0 0;
      -moz-border-radius: 1000px 1000px 0 0;
      border-radius: 1000px 1000px 0 0;
      /* Border-radius Greater or equal to width*/
    }

    /* Square */
    .palete--square {} /* must set a height */
    .palete--square .palete-color {
      height: 50%;
    }
    .palete--square .palete-color__square {
      height: 100%;
    }
    .palete--square .palete-color__content {
      padding-top: 18px;
    }
    .palete--square .palete-color__code {
      line-height: 1.4;
    }
    .palete--square .palete-color__code:last-child {
      display: block;
    }



.list-palete {
  width: 340px;
  margin: 0 20px;
  float: left;
}
.list-palete > .palete {
    width: 45%;
    margin: 2.5%;
    float: left;
}

.list-palete > .palete--round,
.list-palete > .palete--square{
  height: 153px;
}


/*
 Examples
 */
.examples { 
  float: left;
  width: 340px;
  margin: 0 20px;
}

.example {
  margin: 40px auto;
}

.example--rectangle {
  width: 200px;
}

.example--round {
  width: 200px;
  height: 200px;
}

.example--square {
  width: 200px;
  height: 200px;
}




    /* ###########
       THEME
       ########### */
    
    /* 
     * Grapefruit  
     */
    .palete-color--grapefruit > .palete-color__lighten {
        background-color: #ed5565;
    }
    .palete-color--grapefruit > .palete-color__darken {
        background-color: #da4453;
    }

    /* 
     * Bittersweet  
     */
    .palete-color--bittersweet > .palete-color__lighten {
        background-color: #fc6e51;
    }
    .palete-color--bittersweet > .palete-color__darken {
        background-color: #e9573f;
    }


    /* 
     * Sunflower  
     */
    .palete-color--sunflower > .palete-color__lighten {
        background-color: #ffce54;
    }
    .palete-color--sunflower > .palete-color__darken {
        background-color: #fcbb42;
    }

    /* 
     * Grass  
     */
    .palete-color--grass > .palete-color__lighten {
        background-color: #a0d468;
    }
    .palete-color--grass > .palete-color__darken {
        background-color: #8cc152;
    }

    /* 
     * Mint  
     */
    .palete-color--mint > .palete-color__lighten {
        background-color: #48cfad;
    }
    .palete-color--mint > .palete-color__darken {
        background-color: #37bc9b;
    }

    /* 
     * Aqua  
     */
    .palete-color--aqua > .palete-color__lighten {
        background-color: #4fc1e9;
    }
    .palete-color--aqua > .palete-color__darken {
        background-color: #3bafda;
    }

    /* 
     * Blue Jeans 
     */
    .palete-color--blue-jeans > .palete-color__lighten {
        background-color: #5d9cec;
    }
    .palete-color--blue-jeans > .palete-color__darken {
        background-color: #4a89dc;
    }

    /* 
     * Lavender  
     */
    .palete-color--lavender > .palete-color__lighten {
        background-color: #ac92ec;
    }
    .palete-color--lavender > .palete-color__darken {
        background-color: #967adc;
    }

    /* 
     * Pink Rose  
     */
    .palete-color--pink-rose > .palete-color__lighten {
        background-color: #ec87c0;
    }
    .palete-color--pink-rose > .palete-color__darken {
        background-color: #d770ad;
    }

    /* 
     * Light Gray  
     */
    .palete-color--light-gray > .palete-color__lighten {
        background-color: #f5f7fa;
    }
    .palete-color--light-gray > .palete-color__darken {
        background-color: #e6e9ed;
    }

    /* 
     * Medium Gray  
     */
    .palete-color--medium-gray > .palete-color__lighten {
        background-color: #ccd1d9;
    }
    .palete-color--medium-gray > .palete-color__darken {
        background-color: #aab2bd;
    }

    /* 
     * Dark Gray  
     */
    .palete-color--dark-gray > .palete-color__lighten {
        background-color: #656d78;
    }
    .palete-color--dark-gray > .palete-color__darken {
        background-color: #434a54;
    }
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