#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 p{
    text-align: center;
}

#main_content input[type="button"]{
    border: none;
    background: #fff;
    padding: 1px;
    margin: 0;
    color: #117cb4;
    font-size: 0.9em;
}

#main_content input[type="button"]:hover{
    cursor: pointer;
}

#main_content input[type="button"].active{
    color: #fff;
    background: #117cb4;
}

.ans_icon{ margin-right: 3px; margin-left: 3px; padding: 0; height: 12px;}