html {
    //background: url(../img/background-about.jpg) no-repeat center center fixed;
    //background-size: cover;
    //background-position-y: 100px;
}

.main-row {
    background: url(../img/background-about.jpg) no-repeat center center fixed; 
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    background-size: cover;
}

iframe {
  width: 100%;
}

.aspect-ratio {
  position: relative;
  width: 100%;
  height: 0;
  padding-bottom: 51%;
}

.aspect-ratio iframe {
  position: absolute;
  width: 100%;
  height: 100%;
  left: 0; top: 0;
}

.modal {
    display: none; 
    position: fixed; 
    z-index: 1; 
    left: 0;
    top: 0;
    width: 100vw; 
    height: 100vh; 
    overflow: auto;
    background-color: rgb(0,0,0); 
    background-color: rgba(0,0,0,0.4); 
}


.modal-content {
    background-color: #fefefe;
    margin: auto;
    padding: 10px;
    border: 1px solid #888;
    width: 100%;
}

.close-btn {

}

.download-btn {

}

.modal-menu-item {
    text-align: center;
    width: 40px;
    height: 40px;
    margin-right: 20px;
    padding-top: 5px;
    padding-bottom: 5px;
}

.modal-menu-item:hover {
    cursor: pointer;
    background-color: rgba(0,0,0,0.2);
}

.gallery-info-text {
    margin: 0;
    font-size: 12px;
    margin-top: 10px;
}

.gallery-row {
    min-height: calc(100vh - 160px);
}

@media only screen and (max-width: 900px) {
    .modal-content {
        margin-top: calc(50vh - 50%);
    }
}

@media only screen and (max-width: 767px) {
    .gallery-info-text {
        font-size: 10px;
    }
}