.youtube {}
.youtube iframe {width: 100%; max-width: 600px; height: 340px;}

.add-title{font-size:1.25rem; font-weight:bold;}
.add-box{max-width:900px; margin:0 auto;}

.pb-3{padding-bottom: 3em;}
.pb-1{padding-bottom: 1em;}

.flex{display: flex;}
.left{width: 50%;}
.right{width: 50%;}
.left img{width: 95%;}
.right img{width: 95%;}

.wf-b{font-weight: bold;}

@media screen and (max-width: 599px) {
.flex{flex-flow: column;}
.left{width: 100%; padding-bottom: 1em;}
.right{width: 100%;}
.left img{width: 100%;}
.right img{width: 100%;}
}

.map iframe{width: 100%;}