Простой аккордеон на CSS3 в цветной гамме

<div class="kosanimate">  
  <header>
  <h1>Аккордеон <span>на CSS3</span></h1>
   
  </header>
  <section class="ac-kosanimate">
  <div>
  <input id="leaseamib" name="accordion-1" type="radio" checked />
  <label for="leaseamib">ZORNET.RU #1</label>
  <article class="ac-small">
  <p>Под первым номером это описание </p>
  </article>
  </div>
  <div>
  <input id="roperties" name="accordion-1" type="radio" />
  <label for="roperties">ZORNET.RU #2</label>
  <article class="ac-medium">
  <p>Еще одно описание</p>
  </article>
  </div>
  <div>
  <input id="kidaswthda" name="accordion-1" type="radio" />
  <label for="kidaswthda">ZORNET.RU #3</label>
  <article class="logtudsamib">
  <p>Пишем статью под описание </p>
  </article>
  </div>
  <div>
  <input id="dasermilab" name="accordion-1" type="radio" />
  <label for="dasermilab">ZORNET.RU #4</label>
  <article class="logtudsamib">
  <p>Здесь ваше описание </p>
  </article>
  </div>
  </section>
  </div>

table {
  border-collapse:collapse;
  border-spacing:0;
}
fieldset,img {  
  border:0;
}
address,caption,cite,code,dfn,th,var {
  font-style:normal;
  font-weight:normal;
}
ol,ul {
  list-style:none;
}
caption,th {
  text-align:left;
}
h1,h2,h3,h4,h5,h6 {
  font-size:100%;
  font-weight:normal;
}
q:before,q:after {
  content:'';
}
abbr,acronym { border:0;
}
section, header{
  display: block;
}
/* General Demo Style */
body{
  font-family: 'open sans', Georgia, serif;
  background: #e0e3ec url(../images/bg2.png) repeat top left;
  font-weight: 400;
  font-size: 15px;
  color: #393b40;
  overflow-y: scroll;
}
a{
  color: #333;
  text-decoration: none;
}
.kosanimate{
  width: 100%;
  position: relative;
  text-align: center;
}
.clr{
  clear: both;
}
.kosanimate > header{
  padding: 20px 30px 10px 30px;
  margin: 0px 20px 10px 20px;
  position: relative;
  display: block;
  text-shadow: 1px 1px 1px rgba(0,0,0,0.2);
  text-align: center;
}
.kosanimate > header h1{
  font-family: 'BebasNeueRegular', 'Arial Narrow', Arial, sans-serif;
  font-size: 35px;
  line-height: 35px;
  position: relative;
  font-weight: 400;
  color: #3d7489;
  text-shadow: 1px 1px 1px rgba(0,0,0,0.3);
  padding: 0px 0px 5px 0px;
  letter-spacing:3px;
}
.kosanimate > header h1 span{
  color: #FB8C00;
  text-shadow: 0px 1px 1px rgba(255,255,255,0.8);
  letter-spacing:3px;
}
.kosanimate > header h2{
  font-size: 16px;
  font-style: italic;
  color: #82858e;
  text-shadow: 0px 1px 1px rgba(255,255,255,0.8);
}
/* Header Style */
.codrops-top{
  line-height: 24px;
  font-size: 11px;
  background: rgba(255, 255, 255, 0.6);
  text-transform: uppercase;
  z-index: 9999;
  position: relative;
  box-shadow: 1px 0px 2px rgba(0,0,0,0.2);
}
.codrops-top a{
  padding: 0px 10px;
  letter-spacing: 1px;
  color: #333;
  text-shadow: 0px 1px 1px #fff;
  display: block;
  float: left;
}
.codrops-top a:hover{
  background: #fff;
}
.codrops-top span.right{
  float: right;
}
.codrops-top span.right a{
  float: left;
  display: block;
}

p.codrops-demos{
  text-align:center;
  display: block;
  padding: 14px;
}
p.codrops-demos a,
p.codrops-demos a.current-demo,
p.codrops-demos a.current-demo:hover{
  display: inline-block;
  border: 1px solid #7FB2C1;
  padding: 4px 10px 3px;
  font-size: 13px;
  line-height: 18px;
  margin: 0px 3px;
  font-weight: 800;
  -webkit-box-shadow: 0px 1px 1px rgba(0,0,0,0.1);
  -moz-box-shadow:0px 1px 1px rgba(0,0,0,0.1);
  box-shadow: 0px 1px 1px rgba(16, 16, 16, 0.09);
  color: #fff;
  text-shadow: 1px 1px 1px rgba(12, 12, 12, 0.63);
  -webkit-border-radius: 6px;
  -moz-border-radius: 6px;
  border-radius: 6px;
  background: #a2c9da;
  background: -moz-linear-gradient(top, #a2c9da 0%, #719aab 100%);
  background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#b0d4e3), color-stop(100%,#719aab));
  background: -webkit-linear-gradient(top, #a2c9da 0%,#719aab 100%);
  background: -o-linear-gradient(top, #b0d4e3 0%,#719aab 100%);
  background: -ms-linear-gradient(top, #a2c9da 0%,#719aab 100%);
  background: linear-gradient(top, #b0d4e3 0%,#719aab 100%);
  filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#b0d4e3', endColorstr='#88bacf',GradientType=0 );
}
p.codrops-demos a:hover{
  background: #80B8CE;
}
p.codrops-demos a:active{
  -webkit-box-shadow: 0px 1px 1px rgba(255,255,255,0.4);
  -moz-box-shadow: 0px 1px 1px rgba(255,255,255,0.4);
  box-shadow: 0px 1px 1px rgba(255,255,255,0.4);
}
p.codrops-demos a.current-demo,
p.codrops-demos a.current-demo:hover{
  color: #3d7489;
  text-shadow: 0px 1px 1px rgba(255,255,255,0.3);
}
/* Media Queries */
@media screen and (max-width: 767px) {
  .kosanimate > header{
  text-align: center;
  }
  p.codrops-demos {
  position: relative;
  top: auto;
  left: auto;
  }
}

.ac-kosanimate{
  width: 798px;
  max-width:100%;
  margin: 9px auto 29px auto;
  text-align: left;
}
.ac-kosanimate label{
  font-family: 'open sans', Arial, sans-serif;
  padding: 6px 19px 10px 19px;
  position: relative;
  z-index: 19;
  display: block;
  height: 29px;
  cursor: pointer;
  color: #777;
  /*text-shadow: 1px 1px 1px rgba(255,255,255,0.8);*/
  line-height: 33px;
  font-size: 19px;
  background: #fbfbfb;
  background: -moz-linear-gradient(top, #fbfbfb 1%, #e6e3e3 100%);
  background: -webkit-gradient(linear, left top, left bottom, color-stop(1%,#fbfbfb), color-stop(100%,#e6e3e3));
  background: -webkit-linear-gradient(top, #ffffff 1%,#e6e3e3 100%);
  background: -o-linear-gradient(top, #fbfbfb 1%,#eaeaea 100%);
  background: -ms-linear-gradient(top, #fbfbfb 1%,#eaeaea 100%);
  background: linear-gradient(top, #fbfbfb 1%,#eaeaea 100%);
  filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#fbfbfb', endColorstr='#e2dfdf',GradientType=0 );
  /*box-shadow:  
  0px 0px 0px 1px rgba(155,155,155,0.3),  
  1px 0px 0px 0px rgba(255,255,255,0.9) inset,  
  0px 2px 2px rgba(0,0,0,0.1);*/
}
.ac-kosanimate label:hover{
  background: #e68d08;
  color:#f7f5f5;
}
.ac-kosanimate input:checked + label,
.ac-kosanimate input:checked + label:hover{
  background: #84b34f;
  color: #f7f5f5;
}
.ac-kosanimate label:hover:after,
.ac-kosanimate input:checked + label:hover:after{
  content: '';
  position: absolute;
  width: 25px;
  height: 25px;
  right: 14px;
  top: 8px;
  background: transparent url(../images/arrow_down.png) no-repeat center center;  
}
.ac-kosanimate input:checked + label:hover:after{
  background-image: url(../images/arrow_up.png);
}
.ac-kosanimate input{
  display: none;
}
.ac-kosanimate article{
  background: rgba(255, 255, 255, 0.5);
  margin-top: -1px;
  overflow: hidden;
  height: 0px;
  position: relative;
  z-index: 10;
  -webkit-transition: height 0.3s ease-in-out, box-shadow 0.6s linear;
  -moz-transition: height 0.3s ease-in-out, box-shadow 0.6s linear;
  -o-transition: height 0.3s ease-in-out, box-shadow 0.6s linear;
  -ms-transition: height 0.3s ease-in-out, box-shadow 0.6s linear;
  transition: height 0.3s ease-in-out, box-shadow 0.6s linear;
}
.ac-kosanimate article p{
  font-style: italic;
  color: #777;
  line-height: 26px;
  font-size: 14px;
  padding: 20px;
  text-shadow: 1px 1px 1px rgba(255,255,255,0.8);
}
.ac-kosanimate input:checked ~ article{
  -webkit-transition: height 0.5s ease-in-out, box-shadow 0.1s linear;
  -moz-transition: height 0.5s ease-in-out, box-shadow 0.1s linear;
  -o-transition: height 0.5s ease-in-out, box-shadow 0.1s linear;
  -ms-transition: height 0.5s ease-in-out, box-shadow 0.1s linear;
  transition: height 0.5s ease-in-out, box-shadow 0.1s linear;
  /*box-shadow: 0px 0px 0px 1px rgba(155,155,155,0.3); */
}
.ac-kosanimate input:checked ~ article.ac-small{
  height: 179px;
}
.ac-kosanimate input:checked ~ article.ac-medium{
  height: 179px;
}
.ac-kosanimate input:checked ~ article.logtudsamib{
  height: 179px;
}