* {
  -webkit-box-sizing: border-box;
     -moz-box-sizing: border-box;
      -ms-box-sizing: border-box;
          box-sizing: border-box;
}
 
body {
  background: #333;
}

.maintext {
	margin: auto;
	font-size: 30px;
	font-weight: bold;
	color: #fff;
	margin-bottom: 20px;
	}

.pic {
  border: 10px solid #fff;  
  height: 171px;
  width: 320px;
  margin: auto;
  overflow: hidden;
  -webkit-box-shadow: 5px 5px 5px #111;
          box-shadow: 5px 5px 5px #111;
  margin-bottom: 20px;
}

/*DARKEN*/
.brighten img {
  -webkit-filter: brightness(80%);
  -webkit-transition: all 1s ease;
     -moz-transition: all 1s ease;
       -o-transition: all 1s ease;
      -ms-transition: all 1s ease;
          transition: all 1s ease;
}
 
.brighten img:hover {
  -webkit-filter: brightness(100%);
}