<div class="container">

  <div class="calendar-container">

    <header>
      
      <div class="day">18</div>
      <div class="month">August</div>

    </header>

    <table class="calendar">
      
      <thead>

        <tr>

          <td>Mon</td>
          <td>Tue</td>
          <td>Wed</td>
          <td>Thu</td>
          <td>Fri</td>
          <td>Sat</td>
          <td>Sun</td>

        </tr>

      </thead>

      <tbody>

        <tr>
          <td class="prev-month">29</td>
          <td class="prev-month">30</td>
          <td class="prev-month">31</td>
          <td>1</td>
          <td>2</td>
          <td>3</td>
          <td>4</td>
        </tr>

        <tr>
          <td>5</td>
          <td>6</td>
          <td>7</td>
          <td>8</td>
          <td>9</td>
          <td>10</td>
          <td>11</td>
        </tr>

        <tr>
          <td>12</td>
          <td>13</td>
          <td>14</td>
          <td>15</td>
          <td>16</td>
          <td>17</td>
          <td class="current-day">18</td>
        </tr>

        <tr>
          <td>19</td>
          <td>20</td>
          <td>21</td>
          <td>22</td>
          <td>23</td>
          <td>24</td>
          <td>25</td>
        </tr>

        <tr>
          <td>26</td>
          <td>27</td>
          <td>28</td>
          <td>29</td>
          <td>30</td>
          <td>31</td>
          <td class="next-month">1</td>
        </tr>

      </tbody>

    </table>

    <div class="ring-left"></div>
    <div class="ring-right"></div>

  </div> <!-- end calendar-container -->

</div> <!-- end container -->

@use postcss-preset-env;

body {
	background: #ccc;
  display: grid;
	font: 87.5%/1.5em 'Lato', sans-serif;
	margin: 0;
  min-height: 100vh;
  place-items: center;
}

table {
	border-collapse: collapse;
	border-spacing: 0;
}

td {
	padding: 0;
}

.calendar-container {
	position: relative;
	width: 450px;
}

.calendar-container header {
	border-radius: 1em 1em 0 0;
	background: #e66b6b;
	color: #fff;
	padding: 3em 2em;
}

.day {
	font-size: 8em;
	font-weight: 900;
	line-height: 1em;
}

.month {
	font-size: 4em;
	line-height: 1em;
	text-transform: lowercase;
}

.calendar {
	background: #fff;
	border-radius: 0 0 1em 1em;
	-webkit-box-shadow: 0 2px 1px rgba(0, 0, 0, .2), 0 3px 1px #fff;
	box-shadow: 0 2px 1px rgba(0, 0, 0, .2), 0 3px 1px #fff;
	color: #555;
	display: inline-block;
	padding: 2em;
}

.calendar thead {
	color: #e66b6b;
	font-weight: 700;
	text-transform: uppercase;
}

.calendar td {
	padding: .5em 1em;
	text-align: center;
}

.calendar tbody td:hover {
	background: #cacaca;
	color: #fff;
}

.current-day {
	color: #e66b6b;
}

.prev-month,
.next-month {
	color: #cacaca;
}

.ring-left,
.ring-right {
	position: absolute;
	top: 230px;
}

.ring-left { left: 2em; }
.ring-right { right: 2em; }

.ring-left:before,
.ring-left:after,
.ring-right:before,
.ring-right:after {
	background: #fff;
	border-radius: 4px;
	-webkit-box-shadow: 0 3px 1px rgba(0, 0, 0, .3), 0 -1px 1px rgba(0, 0, 0, .2);
	box-shadow: 0 3px 1px rgba(0, 0, 0, .3), 0 -1px 1px rgba(0, 0, 0, .2);
	content: "";
	display: inline-block;
	margin: 8px;
	height: 32px;
	width: 8px;
}