body {
  /* background: #000;
  color: white;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center; */
  /* font-family: 'Roboto Mono'; */
}

.demo-btn {
  display: inline-block;
  margin: 0 2.5px 4vh 2.5px;
  text-decoration: none;
  color: grey;
  padding: 15px;
  line-height: 1;
  min-width: 140px;
  background: rgba(0, 0, 0, 0.07);
  border-radius: 6px;
}

.demo-btn:hover {
  background: rgba(0, 0, 0, 0.12);
}

@media (max-width: 640px) {
  .demo-btn {
    min-width: 0;
    font-size: 14px;
  }
}

/*
==========================================
2. Responsive Photo Gallery
========================================== 
*/
.m-p-g {
  /* max-width: 860px; */
  /* margin: 0 auto; */
}

.m-p-g__thumbs-img {
  margin: 0;
  float: left;
  vertical-align: bottom;
  cursor: pointer;
  z-index: 1;
  position: relative;
  opacity: 0;
  -webkit-filter: brightness(100%);
  filter: brightness(100%);
  -webkit-tap-highlight-color: transparent;
  will-change: opacity, transform;
  -webkit-transition: all 0.5s cubic-bezier(0.23, 1, 0.32, 1);
  transition: all 0.5s cubic-bezier(0.23, 1, 0.32, 1);
  padding: 10px;
}

.m-p-g__thumbs-img.active {
  z-index: 50;
}

.m-p-g__thumbs-img.layout-completed {
  opacity: 1;
}

.m-p-g__thumbs-img.hide {
  opacity: 0;
}

.m-p-g__thumbs-img:hover {
  -webkit-filter: brightness(110%);
  filter: brightness(110%);
}

.m-p-g__fullscreen {
  position: fixed;
  z-index: 10;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 100vh;
  background: 0 0;
  visibility: hidden;
  -webkit-transition: background 0.25s ease-out, visibility 10ms 0.5s linear;
  transition: background 0.25s ease-out, visibility 10ms 0.5s linear;
  will-change: background, visibility;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}

.m-p-g__fullscreen.active {
  -webkit-transition: background 0.25s ease-out, visibility 0.01s 0s linear;
  transition: background 0.25s ease-out, visibility 0.01s 0s linear;
  visibility: visible;
  background: rgba(0, 0, 0, 0.95);
}

.m-p-g__fullscreen-img {
  pointer-events: none;
  position: absolute;
  -webkit-transform-origin: left top;
  -ms-transform-origin: left top;
  transform-origin: left top;
  top: 50%;
  left: 50%;
  max-height: 100vh;
  max-width: 100%;
  visibility: hidden;
  will-change: visibility;
  -webkit-transition: opacity 0.5s ease-out;
  transition: opacity 0.5s ease-out;
}

.m-p-g__fullscreen-img.active {
  visibility: visible;
  opacity: 1 !important;
  -webkit-transition: -webkit-transform 0.5s cubic-bezier(0.23, 1, 0.32, 1),
    opacity 0.5s ease-out;
  transition: transform 0.5s cubic-bezier(0.23, 1, 0.32, 1),
    opacity 0.5s ease-out;
}

.m-p-g__fullscreen-img.almost-active {
  opacity: 0;
  -webkit-transform: translate3d(0, 0, 0) !important;
  transform: translate3d(0, 0, 0) !important;
}

.m-p-g__controls {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 200;
  height: 20vh;
  background: -webkit-linear-gradient(
    bottom,
    transparent 0,
    rgba(0, 0, 0, 0.55) 100%
  );
  background: linear-gradient(to top, transparent 0, rgba(0, 0, 0, 0.55) 100%);
  opacity: 0;
  visibility: hidden;
  -webkit-transition: all 0.5s cubic-bezier(0.23, 1, 0.32, 1);
  transition: all 0.5s cubic-bezier(0.23, 1, 0.32, 1);
}

.m-p-g__controls-arrow,
.m-p-g__controls-close {
  position: absolute;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.m-p-g__controls.active {
  opacity: 1;
  visibility: visible;
}

.m-p-g__controls-arrow,
.m-p-g__controls-close {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  border: none;
  background: 0 0;
}

.m-p-g__controls-arrow:focus,
.m-p-g__controls-close:focus {
  outline: 0;
}

.m-p-g__controls-arrow {
  z-index: 1;
  top: 0;
  width: 20%;
  height: 100vh;
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -webkit-align-items: center;
  -ms-flex-align: center;
  align-items: center;
  opacity: 0;
}

.m-p-g__controls-arrow:hover {
  opacity: 1;
}

.m-p-g__controls-arrow--prev {
  left: 0;
  padding-left: 3vw;
  -webkit-box-pack: start;
  -webkit-justify-content: flex-start;
  -ms-flex-pack: start;
  justify-content: flex-start;
}

.m-p-g__controls-arrow--next {
  right: 0;
  padding-right: 3vw;
  -webkit-box-pack: end;
  -webkit-justify-content: flex-end;
  -ms-flex-pack: end;
  justify-content: flex-end;
}

.m-p-g__controls-close {
  top: 3vh;
  left: 3vw;
  z-index: 5;
}

.m-p-g__btn {
  display: -webkit-inline-box;
  display: -webkit-inline-flex;
  display: -ms-inline-flexbox;
  display: inline-flex;
  -webkit-box-align: center;
  -webkit-align-items: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -webkit-justify-content: center;
  -ms-flex-pack: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.07);
  -webkit-transition: all 0.25s ease-out;
  transition: all 0.25s ease-out;
}

.m-p-g__btn:hover {
  background: rgba(255, 255, 255, 0.15);
}

.m-p-g__alertBox {
  position: fixed;
  z-index: 999;
  max-width: 700px;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
  background: #fff;
  padding: 25px;
  border-radius: 3px;
  text-align: center;
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.23), 0 10px 40px rgba(0, 0, 0, 0.19);
  color: grey;
}

.m-p-g__alertBox h2 {
  color: red;
}
/*end*/