main > .container {
    padding: 70px 15px 20px;
}

.footer {
    background-color: #f5f5f5;
    font-size: .9em;
    height: 60px;
}

.footer > .container {
    padding-right: 15px;
    padding-left: 15px;
}

.not-set {
    color: #c55;
    font-style: italic;
}

/* add sorting icons to gridview sort links */
a.asc:after, a.desc:after {
    content: '';
    left: 3px;
    display: inline-block;
    width: 0;
    height: 0;
    border: solid 5px transparent;
    margin: 4px 4px 2px 4px;
    background: transparent;
}

a.asc:after {
    border-bottom: solid 7px #212529;
    border-top-width: 0;
}

a.desc:after {
    border-top: solid 7px #212529;
    border-bottom-width: 0;
}

.grid-view th {
    white-space: nowrap;
}

.hint-block {
    display: block;
    margin-top: 5px;
    color: #999;
}

.error-summary {
    color: #a94442;
    background: #fdf7f7;
    border-left: 3px solid #eed3d7;
    padding: 10px 20px;
    margin: 0 0 15px 0;
}

/* align the logout "link" (button in form) of the navbar */
.nav li > form > button.logout {
    padding-top: 7px;
    color: rgba(255, 255, 255, 0.5);
}

@media(max-width:767px) {
    .nav li > form > button.logout {
        display:block;
        text-align: left;
        width: 100%;
        padding: 10px 0;
    }
}

.nav > li > form > button.logout:focus,
.nav > li > form > button.logout:hover {
    text-decoration: none;
    color: rgba(255, 255, 255, 0.75);
}

.nav > li > form > button.logout:focus {
    outline: none;
}
.hero-image {
    background-image: url("/images/yutubig.png");
    background-color: #cccccc;
    height: 200px;
    background-position: center;
    background-repeat: repeat;
    background-size: cover;
    position: relative;
}

.hero-text {
    text-align: center;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
}
.navbar {
    margin-bottom: 20px;
}

.close {
    font-size: 1.5rem;
}

.col-12 img {
    opacity: 0.7;
    cursor: pointer;
    margin: 2rem;
    width: 100%;
}

.col-12 img:hover {
    opacity: 1;
    box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
}
div.AdBox {
  width: 100%; margin: 20px;
  text-align: center;
  border-collapse: collapse;
}
.divTable.AdBox .divTableCell, .divTable.AdBox .divTableHead {
  border: 0px solid #fff;
  padding: 10px 10px; font-size: 9px; 
}
/* DivTable.com */
.divTable{ display: table; }
.divTableRow { display: table-row; }
.divTableHeading { display: table-header-group;}
.divTableCell, .divTableHead { display: table-cell; background-color: #F3F3F3;}
.divTableHeading { display: table-header-group;}
.divTableFoot { display: table-footer-group;}
.divTableBody { display: table-row-group;}
.divAdTop { background-color: #F3F3F3; width: 100%; padding: 8px 8px; margin: 10px 10px; font-size: 9px; text-align: center; border-collapse: collapse;}