.iframe-container {
    position: relative;
	height: 0;
	padding-bottom: 56.25%;
}

.iframe-container iframe {
    position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
}
nav {
    background-color: #f0f0f0;
    border-bottom: 1px solid #ccc;
    margin-bottom: 10px;
}
.btn-block {
    width: 100%;
}
.swiper-slide {
    height: 500px;
    border-radius: 12px;
    border: 2px solid #666;
    background-size: cover;
    background-position: 50% 50%;
}
.swiper-slide a {
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    box-shadow: 2px 2px 2px 3px rgba(0, 0, 0, .3);
}
#footer {
    background: #1f1f1f;
    color: #fff;
    padding-top: 20px;
    padding-bottom: 20px;
    margin-top: 20px;
}
.social-media-button {
    border-radius: 50%;
    width: 38px;
    height: 38px;
    padding-top: 4px;
    padding-left: 10px;
    padding-right: 10px;
}