main.css

html {
    padding-bottom: 2em;
    font-family: 'Roboto', sans-serif;
}

h1{
  padding-top: .5em;
  text-align: center;
}

#left {
  width: 50%;
  float: left;
}

#right {
  width: 50%;
  float: right;
}

#picture {
  width:80%;
  height:80%;
  margin-left: auto;
  margin-right: auto;
  position: relative;
}

#picture img {
    display: block;
    padding-top: 2em;
    width:100%;
    height:100%;
}

.text {
    position: absolute;
    top: 0;
    color:#000;
    background-color:rgba(255,255,255,0.8);
    font-size: 2em;
    width: 100%;
    height: 100%;
    line-height:1200%;
    text-align: center;
    z-index: 10;
    opacity: 0;
    -webkit-transition: all 0.5s ease;
    -moz-transition: all 0.5s ease;
    -o-transition: all 0.5s ease;
    transition: all 0.5s ease;
}

.text:hover {
    opacity:1;
}

@media screen and (max-width: 1046px) {
    
    #left, #right {
        width: 100%;
        margin-bottom: .5em;
    }
}