html - Background image height issue on div -


i have div background image applied (#wrapper) , first child of div absolute positioned color overlay div (.bg-overlay) reason whenever have .bg-overlay div doesn't seem allow background image grow in height when other elements placed within it.

i trying apply bottom padding p tag within #wrapper seems overflow when looking @ inspect tool. dont quite understand why main #wrapper div isnt growing in height. have set min-height of 200px. i'm sure simple im missing here. appreciate help, here markup.

#wrapper {     background-image: url("http://placehold.it/350x150");    background-repeat: no-repeat;    background-size: cover;    background-position: center center;    position: relative;    min-height: 200px;  }    .bg-overlay {      background-color: rgba(75, 78, 83, 0.6);    width: 100%;    height: 100%;    position: absolute;    top: 0;    left: 0;  }    #content-wrap p {    padding-bottom: 100px;  }
<section id="wrapper">    <div class="bg-overlay">    <div id="content-wrap">    <h1>    heading heading heading    </h1>    <p>    lorem ipsum dummy text of printing , typesetting industry. lorem ipsum has been industry's standard dummy text ever since 1500s, when unknown printer took galley of type , scrambled make type specimen book. has survived not 5 centuries, leap electronic typesetting, remaining unchanged. popularised in 1960s release of letraset sheets containing lorem ipsum passages, , more desktop publishing software aldus pagemaker including versions of lorem ipsum.    </p>    </div>     </div>  </section>

#wrapper not going grow add content .bg-overlay because absolute positioned. means it's taken out of normal document flow , doesn't take space. far #wrapper concerned it's empty , doesn't have height.

you'll have move content out of .bg-overlay or not use absolute positioning on #wrapper adjust add content. use pseudo element create overlay. way can simplify markup bit.

position: relative; , z-index: 5; on #content-wrap elevates above pseudo element isn't under overlay.

#wrapper {    position: relative;    z-index: 0;    background-image: url("http://placehold.it/350x150");    background-repeat: no-repeat;    background-size: cover;    background-position: center center;  }    #wrapper::before {    content: '';    position: absolute;    top: 0;    right: 0;    bottom: 0;    left: 0;    z-index: 5;    background-color: rgba(75, 78, 83, 0.6);  }    #content-wrap {    position: relative;    z-index: 5;  }    #content-wrap p {    color: white;    padding-bottom: 100px;  }
<section id="wrapper">    <div id="content-wrap">          <h1>        heading heading heading      </h1>      <p>        lorem ipsum dummy text of printing , typesetting industry. lorem ipsum has been industry's standard dummy text ever since 1500s, when unknown printer took galley of type , scrambled make type specimen book. has        survived not 5 centuries, leap electronic typesetting, remaining unchanged. popularised in 1960s release of letraset sheets containing lorem ipsum passages, , more desktop        publishing software aldus pagemaker including versions of lorem ipsum.      </p>      </div>  </section>


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