.slidr form { 
    background: #fafafa;
    padding: 10px;
    display: inline-block;
    border-radius: 3px;
    border: solid 1px #ddd;
    width: 100%; 
	height: 500px;
    overflow: hidden;
}
.slidr input { display: none; }
.slidr input:checked + label, label:hover { 
    background: #4D90FE;
    background: -webkit-linear-gradient(top,#4D90FE,#4787ED);
    border: solid 1px rgba(0,0,0,.15);
    color: white; 
    
}
.slidr label { 
    font-family: helvetica;
    cursor: pointer; 
    display: block; 
    border: solid 1px transparent;
    text-align: center; 
    line-height: 40px; 
    border-radius: 3px; 
    float: left;
    width: 40px;
    height: 40px;
}
.slidr label:last-child { margin-right: 0; }
.slidr label {     
    background: rgba(77, 144, 254, .5); 
    border: solid 1px rgba(0,0,0,.15); 
}

.slidr article { 

    width: 0;
	max-width: 200px;
    height: 500px;
    overflow: hidden; 
    -webkit-transition: width .25s linear, opacity .2s linear; 
    transition: width .25s linear, opacity .3s linear; 
    position: relative; 
    top: 5px;
    margin-bottom: 0;
    padding: 0;
    margin-right: 10px;
    opacity: 0;
    float: left;
}
.slidr div:last-child article { margin-right: 0; }
.slidr article p {
    color: #333;
    font-family: helvetica;
    font-size: 12px;
    line-height: 18px;
    width: 100%;    
    padding: 5px 10px;
}

.slidr div > input:checked ~ article { width: 80%; opacity: 1; }