style.css

html {
    position: relative;
}

body {
    margin-bottom: 100px;
    
}

.jumbotron img{
    /* margin-bottom: 200px; */
    width: 200px;
}
hr {
    width: 250px;
    border-top: 3px solid rgb(236, 6, 6) ;
}

section {
    min-height: 600px;
    margin-top: 350px;
}

.portofolio .row img{
    width: 350px;
    margin-bottom: 30px;
}
.map-container-section {
  overflow:hidden;
  padding-bottom:56.25%;
  position:relative;
  height:0;
}
.map-container-section iframe {
  left:0;
  top:0;
  height:100%;
  width:100%;
  position:absolute;
}
footer {
    position: absolute;
    bottom: 0;
    width: 100%;
    height: 90px;
    background-color: rgb(62, 63, 63);
    color: rgb(255, 30, 0);
    padding-top: 25px;
}

.overlay {
    width: 0;
    height: 0;
    overflow: hidden;
    position: fixed;
    top: 0;
    left: 0;
    background: rgb(0,0,0,0);
    z-index: 9999;
    transition: .5s;   
    text-align: center;
    padding: 200px 0;

}

.overlay:target{
    width: auto;
    height: auto;
    bottom: 0;
    right: 0;
    background: rgb(0,0,0,.8);
    
}

.overlay img {
    /* max-height: 100%; */
    max-width: 650%;
    box-shadow: 2px 2px 7px rgb(0,0,0,.8);
}

.overlay:target img{
    animation: zoomdanfade .8s;
}

.overlay:target p{
    animation: zoomdanfade .8s;
}
.overlay .close{
    position: absolute;
    top: 150px;
    right: 50%;
    opacity: 0;
}

.overlay:target .close{
    animation: slidedown .5s .5s forwards;
}

@keyframes zoomdanfade{
    0% {
        transform: scale(0);
        opacity: 0;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes slidedown{
    0% {
        opacity: 0;
        margin-top: -90px;
    }
    100% {        
        opacity: 1;
        margin-top: 0;
    }
}