#ap-content {
    width: 100%;
    background: transparent;
    position:relative;
    overflow:hidden;
}

#ap-empty {
    width: 50%; 
    float: left; 
    background: transparent;
}

#ap-list-container {

}

#ap-list-container f3 {
    margin: 0 !important;
    padding: 5px 0 !important;
}


/* -------------------------------------- */

/* classes */

@media screen and (max-width: 1050px) {
    .link-white-arial {
    font-size: 0.9em;
    line-height: 0.9em;
}
}

@media screen and (min-width: 1051px) {
    .link-white-arial {
    font-size: 1.3em;
    line-height: 1.4em;
}
.list-item {
    margin-bottom: .5em;
}
#item-5.list-item {
    margin-bottom: 0;
}

}

@media screen and (min-width: 768px) {
.list-item {
    left: 62%;
    width: 30%;
}
.list-image {
    opacity:0.0; 
    height:100%; 
    position: absolute; 
    transition: opacity 1s ease-in-out;
    background-repeat:no-repeat;
}
.list-item:hover + .list-image, .list-item.active + .list-image {opacity: 1.0;}
}



@media screen and (max-width: 767px) {
.list-item {
    left: 0;
    width: 100%;
}
.list-image {
    opacity:1.0;
    height: 0px;
    position: relative;
    transition: height 0.4s ease-in-out;
    display:block;
}
.list-item:hover + .list-image, .list-item.active + .list-image {height:150px;}
}

.list-item:hover, .list-item.active {
    background: rgba(0,0,0,0.2);
}

.list-item {
    top: 5%;
    padding: 1.2em 2em 1em 2em;
    background-color:rgba(0,0,0,0.8);
    border-top: 2px solid rgba(0,0,0,.2);
    -webkit-background-clip: padding-box;
    background-clip: padding-box;
    position:relative;
    text-align: left;
    z-index:1;
}
.list-image {
    width: 100%; 
    z-index: 0; 
    top: 0; 
    background-repeat:no-repeat;
    background-size:100% auto;
}

.link-white-arial {
    color: #fff;
    font-family: "Source Sans Pro",sans-serif;
    padding: 1%;
    display: block;
    margin-bottom: -2%;
    font-weight: normal;
}
.link-white-arial:hover {
    color: #fff !important;
    background-color: transparent;
    background: transparent;
    opacity: none; 
    text-decoration: none;
}



#bg-1 {background-image: url(../../../../sites/default/files/banner-thumb-hardware.jpg); opacity:1.0 !important;}
#bg-2 {background-image: url(../../../../sites/default/files/hp-banner-brain-2.jpg);}
#bg-3 {background-image: url(../../../../sites/default/files/banner-photonics.jpg);}
#bg-4 {background-image: url(../../../../sites/default/files/banner-quantum.jpg);}
#bg-5 {background-image: url(../../../../sites/default/files/blue-1.jpg);}


.bg-grey {
    background: grey;
}

.bg-darkgrey {
    background: darkgrey;
}
.bg-yellow {
    background: yellow;
}
.bg-red {
    background-color: red;
}