#main_content{
    min-height: 250px;
}

#progress, #solution{
    margin-bottom: 75px;
}

#main_icon{
    background-image: url(../img/activity.png);
    background-position: center center;
    background-repeat: no-repeat;
}

#main_nav{
    text-align: right;
    padding-left: 5%;
    padding-right: 5%;
}

.nav_button{
    background: #1696d7;
    border: 1px solid #fff;
    margin: auto;
    margin-top: 5px;
    width: 110px;
}

div.nav_button:hover{
    background: #f08734;
    border: 1px solid #fff;
}

div.item_slideshow{
    position: relative;
    display: block;
    margin: auto;
    padding: auto;
}

div.item{
    position: absolute;
    display: block;
    left: 0; right: 0; top: 0;
    opacity: 0;
    text-align: center;
    padding: 5px;
    padding-bottom: 25px;
    color: #02202f;
    overflow:hidden;
}

div.item.show{
    position: relative;
    opacity: 1;
    transition: 0.5s opacity;
	z-index: 5;
}

span{
	position: relative;
    pointer-events: none;
}

div.item.show span{
    pointer-events: auto;
    z-index: 1;
}

span:hover{
	opacity: 0.5;
	cursor: pointer;
}

span.active:hover{
	opacity: 1;
}

span.active, span.inactive{
	background: #ffb452;
	color: #fff;
	padding: 3px;
	z-index: 0;
	pointer-events: none;
}

#progress span.active,
#solution span.active{
    background: #5fcc5f;
}

span.incorrect{
    background: #f40b0e;
    color: #fff;
    padding: 3px;
}

div.item p{
    line-height: 1.55em;
}

#buttonbox{
    position: relative;
    right:0;left:0;
    text-align: center;
}

#reset{
    position: relative;
    margin: auto;
    z-index: 3;
    background: #189adc;
    border: 1px solid #189adc;
    border-radius: 7px;
    width: 100px;
    padding: 5px;
    margin: 3px;
    box-shadow: 2px 3px #0e6891;
    color: #fff;
    pointer-events: auto;
}

#reset:hover{ box-shadow: 1px 2px #0e6891; cursor: pointer;}
#reset:active{ box-shadow: 2px 3px #0e6891; }