.thumbnail {
    padding: 0 0 15px 0;
    border: none;
    border-radius: 0;
    background-color: #f6f6f6;
}

    .thumbnail img {
        width: 100%;
        height: 100%;
        margin-bottom: 10px;
    }

#excelab-icon {
    margin-top:-50px; 
    width:90px; 
    height:90px;
}

#excelab {
    white-space:normal; 
    font-size:3em; 
    font-weight:bold;
}
#excelab-dscr {
    white-space:normal; 
    font-size:1.4em; 
    font-weight:bold; 
    color:rgb(33,115,70);
}

.questionHeader {
    margin-top: 60px;
    padding: 25px;
    background-color: black;
    color: rgb(33,115,70);
    font-size: 2.5em;
    font-weight: bold;
}

.whatItis {
    display: block;
    height: auto;
    width: 100%;
    background-color:papayawhip;
    box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
    position: relative;
    margin: 0;
    margin-top:50px;
    padding:10px;
    font-size:1.5em;
}

.whyBuy {
    display: block;
    height: auto;
    width: 100%;
    background-color: papayawhip;
    box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
    position: relative;
    margin: 0;
    font-size:1.3em;
    padding:10px;
}


.whyTeach {
    display: block;
    height: auto;
    width: 100%;
    background-color: papayawhip;
    box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
    position: relative;
    margin: 0;
    padding: 30px;
    font-size: 1.3em
}


.tab-custom {
    font-size: 1.35em;
}

.nav-tabs > li > a:hover,
.nav-tabs > li > a:focus {
    background-color: #42cbad;
    color: #1d2c43;
}

.demo-slide {
    box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
    font-size: 1.3em;
    padding: 20px;
}

    .demo-slide h2 {
        padding: 0px;
    }

.TryNowButton {
    font-size:2em;
    display: block;
    height: auto;
    width: auto;
    width: 100%;
    text-wrap: avoid;
    white-space: nowrap;
    border-radius: 10px;
    background-color: rgb(33,115,70);
    color: ghostwhite;
    box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
    padding: 20px;
}

/* small screen: start with menu off. reverse properties*/
@media (max-width: 768px) {
   
    #excelab-icon {
        width: 74px;
        height: 74px;
        margin-top: -30px;
    }
    #excelab {
        
        font-size: 1.2em;
        font-weight: bold;
    }
    #excelab-dscr {
        white-space: normal;
        font-size: 1.0em;
        font-weight: bold;
        color: rgb(33,115,70);
    }

    .TryNowButton {
        font-size: 1.3em;
    }

    .tab-custom {
        font-size: 1.1em;
    }

}