@charset "UTF-8";

html {
    font-size:62.5%;
}
body {
    font-size:1.7em;
    margin: 0;
}
*, *::before, *::after {
  box-sizing:border-box;
}
.clearfix::after {
  content:'';
  display:block;
  clear:both;
}
h1 {
    font-size: 3rem;
    text-align: center;
}
section {  
font-size:1em;  
}
section .c-text {
    position: fixed;
    top: 40%;
    left: 0;
    content: "";
    width: 100%;
    height: 100%;
    text-align: center;
    font-size: 200%;
    color: #fff;
    text-shadow: 10px 10px 15px rgba(0, 0, 0, 0.75);
    z-index: 2;
}
section img {
    max-width: 100%;
    height: auto;
}
section div {
    position: relative;
}
section div::after {
    position: absolute;
    top: 0;
    left: 0;
    content: "";
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.75);
    z-index: 1;
}