#wrapper {
    
    width: 98%;
    margin: 0 auto;
}
#container {
    
    width: 70%;
    margin: 0 auto;
}
h1 {
    text-align: center;
    font-family: Arial;
    font-size: 24px;
    width: 100%;
    border-bottom: 2px solid gray;
    
}
h2 {
    padding-top: 1000px;
}
xmp {
    
    font-family: Arial;
    width: 60%;
    margin: 0 auto;
}
.sub_headings {
    font-family: Arial;
    width: 60%;
    margin: 0 auto;
}
#image_grid_container {
    
    margin: 0 auto;
    padding-left: 100px;
}
div.gallery {
    
    margin: 5px ;
    border: 1px solid #ccc;
    float: left;
    width: 22em;
}

div.gallery:hover {
    border: 1px solid #777;
}

div.gallery img {
    width: 100%;
    height: 10em;
}

div.desc {
    padding: 15px;
    text-align: center;
    font-family: Arial;
}