* {
  box-sizing: border-box;
}

/*
body {
  font-family: Arial;
  font-size: 17px;
}
*/

.gcont {
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
}

.gcont img {vertical-align: middle;}

.gcont .gblock {
  position: absolute;
  bottom: 0;
  background: rgb(0, 0, 0); /* Fallback color */
  background: rgba(0, 0, 0, 0.5); /* Black background with 0.5 opacity */
  color: #f1f1f1;
  width: 100%;
  padding: 20px;
  font-size: 1.2vw;
}

.galimg { font-size: 1.2vw; }