css - "content" div height adapted to content. -

i have tabs , 'content' div height adapted height of content. have tried several things of them doesn't work, others work tabs separated of content. here code:

html     <div id="contenedor">     <input id="tab-1" type="radio" name="radio-set" class="tab-      selector-1"     checked="checked" />     <label for="tab-1" class="tab-label-1">pestaña1</label>      <input id="tab-2" type="radio" name="radio-set" class="tab-selector-2" />     <label for="tab-2" class="tab-label-2">pestaña2</label>      <input id="tab-3" type="radio" name="radio-set" class="tab-selector-3" />     <label for="tab-3" class="tab-label-3">pestaña3</label>      <input id="tab-4" type="radio" name="radio-set" class="tab-selector-4" />     <label for="tab-4" class="tab-label-4">pestaña4</label>      <div class="content">         <div class="content-1">             "sed ut perspiciatis unde omnis iste natus error sit voluptatem accusantium doloremque laudantium, totam rem aperiam, eaque ipsa quae ab illo inventore veritatis et quasi architecto beatae vitae dicta sunt explicabo. nemo enim ipsam voluptatem quia voluptas sit aspernatur aut odit aut fugit, sed quia consequuntur magni dolores eos qui ratione voluptatem sequi nesciunt. neque porro quisquam est, qui dolorem ipsum quia dolor sit amet, consectetur, adipisci velit, sed quia non numquam eius modi tempora incidunt ut labore et dolore magnam aliquam quaerat voluptatem. ut enim ad minima veniam, quis nostrum exercitationem ullam corporis suscipit laboriosam, nisi ut aliquid ex ea commodi consequatur? quis autem vel eum iure reprehenderit qui in ea voluptate velit esse quam nihil molestiae consequatur, vel illum qui dolorem eum fugiat quo voluptas nulla pariatur?"         </div>         <div class="content-2">             contenido2         </div>         <div class="content-3">             contenido3         </div>         <div class="content-4">             contenido4         </div>     </div> </div>   css   #contenedor {     margin-top: 100px;     margin-right: auto;     margin-left: 16px;     margin-bottom: 40px;     width: 82%;  /* ancho del contenedor */     box-sizing: border-box;     -moz-box-sizing: border-box; }  #contenedor input {     height: 33px;     visibility: hidden; }  #contenedor label { float: left; cursor: pointer; font-size: 13px;  /* tamaño del texto de las pestañas */ line-height: 40px; height: 40px; padding: 0 20px; display: block; color: #3078aa;  /* color del texto de las pestañas */ text-align: center; border-radius: 5px 5px 0 0; background: #edeade;  /* fondo de las pestañas */ margin-right: 5px; }  #contenedor input:hover + label { background: #e8e4d4;  /* fondo de las pestañas al pasar el cursor por encima */ color: #d98943;  /* color del texto de las pestañas al pasar el cursor por encima */ }  #contenedor input:checked + label {     background: #f4f2ea;  /* fondo de las pestañas al presionar */     color: #3078aa; /* color de las pestañas al presionar */     z-index: 6;     line-height: 45px;     height: 45px;     position: relative;     top: -5px;     -webkit-transition: .1s;     -moz-transition: .1s;     -o-transition: .1s;     -ms-transition: .1s;     border-top: 1px solid #dacc9a;     border-left: 1px solid #dacc9a;     border-right: 1px solid #dacc9a; }  .content {     background: #f4f2ea;  /* fondo del contenido */     position: relative;     width: 100%;     height: 350px;  /* alto del contenido */     padding: 30px;     z-index: 5;     border-radius: 0 5px 5px 5px;     border: 1px solid #dacc9a; }  .content div { position: absolute; z-index: -100; opacity: 0; transition: linear 0.1s; }  #contenedor input.tab-selector-1:checked ~ .content .content-1, #contenedor input.tab-selector-2:checked ~ .content .content-2, #contenedor input.tab-selector-3:checked ~ .content .content-3, #contenedor input.tab-selector-4:checked ~ .content .content-4 {     z-index: 100;     opacity: 1;     -webkit-transition: ease-out 0.2s 0.1s; -moz-transition: ease-out 0.2s 0.1s; -o-transition: ease-out 0.2s 0.1s; -ms-transition: ease-out 0.2s 0.1s; } 

it because .content div positioned absolute, can remove that.

.content div {     z-index: -100;     display: none; } 

i remove opacity , replace display: none; because opacity makes element visible. still take space.

#contenedor input.tab-selector-1:checked ~ .content .content-1, #contenedor input.tab-selector-2:checked ~ .content .content-2, #contenedor input.tab-selector-3:checked ~ .content .content-3, #contenedor input.tab-selector-4:checked ~ .content .content-4 {     z-index: 100;     display: inline; } 

here's fiddle

if still want fading effects in showing content found animation css3: display + opacity