html - Using CSS to create hidden background divs -


i followed excellent post on creating grid of responsive squares create, well, grid of responsive squares.

what need create 2 background divs span half height , full width can attach events them. these divs however, cannot interfere content in cell.

this square looks in html:

<div class="row-content">     <div class="content">         <div class="table">             <div class="table-cell numbers">                 <span>100.08</span>             </div>         </div>     </div> </div>

and css

.row-content {     float:left;     position: relative;     width: 8%; /* 1 divide number of columns */     padding-bottom : 8%; /* = width 1:1 aspect ratio */     margin:0.16667%; /* = (100% - (% width * columns)) / (columns * 2) */     background-color:#1e1e1e;     overflow:hidden; }  .content {     position:absolute;     height:98%; /* = 100% - 2*10% padding */     width:98%; /* = 100% - 2*5% padding */     padding: 1%; }  .table{     display:table;     width:100%;     height:100%; }  .table-cell{     display:table-cell;     vertical-align:middle; }  .numbers{     font-weight:900;     font-size:12px;     color:#fff; }

this results in following:

sqaure

here's fiddle.

i'd 2 "hidden" divs behind content. hidden mean divs no content, there solely purpose of attaching events. this:

colorful square

i'm using bootstrap 3 , jquery.

add position: relative; .numbers class in css.
create 2 divs, , add them absolute.

if want show divs behind content add this, added. or remove if want close content divs. 

/* shows content above divs */ .numbers > span {   position: relative;   z-index: 1; }

here code:

#d1, #d2 {    width: 100%;    height: 50%;    left: 0;    position: absolute;  }    #d1 {      top: 0;    background-color: rgba(51,107,230,.5);  }    #d2 {    bottom: 0;    background-color: rgba(255,221,0,.5);  }    /* shows content above divs */  .numbers > span {    position: relative;    z-index: 1;  }    .row-content {    float:left;    position: relative;    width: 8%; /* 1 divide number of columns */    padding-bottom : 8%; /* = width 1:1 aspect ratio */    margin:0.16667%; /* = (100% - (% width * columns)) / (columns * 2) */    background-color:#1e1e1e;    overflow:hidden;  }    .content {    position:absolute;    height:98%; /* = 100% - 2*10% padding */    width:98%; /* = 100% - 2*5% padding */    padding: 1%;    }    .table{    display:table;    width:100%;    height:100%;  }    .table-cell{    display:table-cell;    vertical-align:middle;  }    .numbers{    font-weight:900;    font-size:16px;    color:#fff;    position: relative;  }
<div class="row-content">    <div class="content">      <div class="table">        <div class="table-cell numbers">          <span>100.08</span>          <div id="d1"></div>          <div id="d2"></div>        </div>      </div>    </div>  </div>


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