#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;
}

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

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

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

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

div.item.show table{
	position: relative;
	margin: auto;
	z-index: 1;
}

td{ padding: 3px; }

input[type="text"]{
	background: #fff;
    border: none;
	border-bottom: 3px solid #df9a16;
    width: 155px;
	text-align: center;
    color: #df9a16;
    font-family: 'Roboto-Bold';
}

div.item.show input[type="text"]{
    z-index: 5;
    pointer-events: auto;
}

.ans_icon{
    height: 1em;
    margin-right: 7px;
}

#progress input[type="text"],
#solution input[type="text"]{
    pointer-events: none;
}