stefan22
12/17/2017 - 5:19 AM

Responsive HTML/CSS layout - john hopkins university

responsive html/css layout, with a simple grid framework

<!DOCTYPE html>
<html>
<head>
   <meta charset="utf" />
   <meta name="viewport" content="width=device-width, initial-scale=1">
   <title>selectors</title>
</head>
<style type="text/css">
/* base css */
* {
    box-sizing: border-box;
    margin:0;
    padding: 0;
} 

.cfx::before {
    content: "";
    clear:both;
    display: table;
}

.cfx::after {
    content: "";
    clear: both;
    display: table;
}

.calwrapper {
  margin:0 20px;
  background-color: #f3f3f3;
}

h1 {
  margin: 15px 0;
  text-align: center;
  letter-spacing: 1px;
  color: olive;
  text-shadow: 0px 8px 4px gainsboro;
}

p {
  border:1px solid #004d8a;
  background-color:#CDDC39;
  width: 90%;
  height: 150px;
  margin-right: auto;
  margin-left: auto;
  color: #7B1FA2;
}

.mess {
  display: none;
}

/* simple responsive framework */

.row {
  width: 100%;
}

/******* large devices only ********/
@media screen and (min-width: 1200px) {
  .cal-lg-1,.cal-lg-2,.cal-lg-3,.cal-lg-4,.cal-lg-5,.cal-lg-6,.cal-lg-7,.cal-lg-8,
  .cal-lg-9,.cal-lg-10,.cal-lg-11,.cal-lg-12 {
    float: left;
    border:1px solid green;
    padding:1.25em 0;

  }
  .cal-lg-1 {
    width: 8.33%;
  }
  .cal-lg-2 {
    width: 16.66%;
  }
  .cal-lg-3 {
    width: 25%;
  }
  .cal-lg-4 {
    width: 33%;
  }
  .cal-lg-5 {
    width: 41.66%;
  }
  .cal-lg-6 {
    width: 50%;
  }
  .cal-lg-7 {
    width: 58.33%;
  }
  .cal-lg-8 {
    width: 66.66%;
  }
  .cal-lg-9 {
    width: 74.99%;
  }
  .cal-lg-10 {
    width: 83.33%;
  }
  .cal-lg-11 {
    width: 91.06%;
  }
  .cal-lg-12 {
    width: 100%;
  }

  .mess {
    display: block;
  }

  .mess::after {
    content: "Large Screens";
    width: 99.15%;
    text-align: center;
    border: 1px solid #fff;
    display: block;
    background: white;
    padding: 10px 0;
    margin-top: 30px;

  }

}/* endof large */

/******* medium devices only ********/
@media screen and (min-width: 992px) and (max-width: 1199px) {
  .cal-md-1,.cal-md-2,.cal-md-3,.cal-md-4,.cal-md-5,.cal-md-6,.cal-md-7,.cal-md-8,
  .cal-md-9,.cal-md-10,.cal-md-11,.cal-md-12 {
    float: left;
    border:1px solid green;
    padding: 1.25em 0;
  }
  .cal-md-1 {
    width: 8.33%;
  }
  .cal-md-2 {
    width: 16.66%;
  }
  .cal-md-3 {
    width: 25%;
  }
  .cal-md-4 {
    width: 33%;
  }
  .cal-md-5 {
    width: 41.66%;
  }
  .cal-md-6 {
    width: 50%;
  }
  .cal-md-7 {
    width: 58.33%;
  }
  .cal-md-8 {
    width: 66.66%;
  }
  .cal-md-9 {
    width: 74.99%;
  }
  .cal-md-10 {
    width: 83.33%;
  }
  .cal-md-11 {
    width: 91.06%;
  }
  .cal-md-12 {
    width: 100%;
  }

  .mess {
    display: block;
  }

  .mess::after {
    content: "Medium Screens";
    width: 99.5%;
    text-align: center;
    border: 1px solid #fff;
    display: block;
    background: white;
    padding: 10px 0;
    margin-top: 30px;

  }


}/* endof medium */


/******* small devices only ********/
@media screen and (max-width: 991px) {
  .cal-sm-1,.cal-sm-2,.cal-sm-3,.cal-sm-4,.cal-sm-5,.cal-sm-6,.cal-sm-7,.cal-sm-8,
  .cal-sm-9,.cal-sm-10,.cal-sm-11,.cal-sm-12 {
    float: left;
    border:1px solid green;
    padding: 1.25em 0;
  }
  .cal-sm-1 {
    width: 8.33%;
  }
  .cal-sm-2 {
    width: 16.66%;
  }
  .cal-sm-3 {
    width: 25%;
  }
  .cal-sm-4 {
    width: 33%;
  }
  .cal-sm-5 {
    width: 41.66%;
  }
  .cal-sm-6 {
    width: 50%;
  }
  .cal-sm-7 {
    width: 58.33%;
  }
  .cal-sm-8 {
    width: 66.66%;
  }
  .cal-sm-9 {
    width: 74.99%;
  }
  .cal-sm-10 {
    width: 83.33%;
  }
  .cal-sm-11 {
    width: 91.06%;
  }
  .cal-sm-12 {
    width: 100%;
  }

  .mess {
    display: block;
  }

  .mess::after {
    content: "Small Screens";
    width: 99.5%;
    text-align: center;
    border: 1px solid #fff;
    display: block;
    background: white;
    padding: 10px 0;
    margin-top: 30px;

  }

}/* endof small */


</style>
  <body>
    <div class="calwrapper cfx">
      <h1>responsive layout</h1>
      <div class="row">
        <div class="cal-lg-3 cal-md-6">
          <p>Item 1 <span class="mess"></span></p>
        </div>
        <div class="cal-lg-3 cal-md-6">
          <p>Item 2 <span class="mess"></span></p>
        </div>
        <div class="cal-lg-3 cal-md-6">
          <p>Item 3 <span class="mess"></span></p>
        </div>
        <div class="cal-lg-3 cal-md-6">
          <p>Item 4 <span class="mess"></span></p>
        </div>
        <div class="cal-lg-3 cal-md-6">
          <p>Item 5 <span class="mess"></span></p>
        </div>
        <div class="cal-lg-3 cal-md-6">
          <p>Item 6 <span class="mess"></span></p>
        </div>
        <div class="cal-lg-3 cal-md-6">
          <p>Item 7 <span class="mess"></span></p>
        </div>
        <div class="cal-lg-3 cal-md-6">
          <p>Item 8 <span class="mess"></span></p>
        </div>
    </div><!--  endof row -->
    </div><!-- endof calwrapper --> 
  </body>
</html>