* {
  margin: 0px;
  padding: 0px;
}
html, body {
  height: 100%;
}
body { 
  background-color: gray;
  padding: 60px;
  font-family: 'Trebuchet MS';
}
h3 {
	color: white;
}

img {
  opacity: 1;
  }
  
video {
  opacity: 1;
  }
  
p {
	opacity: 1;
	color: white
}
.navigation-block {
  width: 100px;
}

.hamberger-menu {
  width: 30px;
  height: 30px;
  position: relative;
  display: flex;
  align-items: center;
  cursor: pointer;
}

.bar {
  width: 100%;
  height: 2px;
  background-color: white;
  position: absolute;
  transition: all 0.3s ease-out;
}

.bar.upper-bar {
  transform: translatey(-10px);
  background-color: white;
}

.bar.lower-bar {
  transform: translatey(10px);
  background-color: white;
}

.hamberger-menu,
.menu-list {
  position: relative;
  z-index: 2;
}

.menu-list {
  display: none;
}

.menu-list > ul {
  list-style: none;
  margin-top: 20px;
}

.menu-list > ul > li a {
  color: #fff;
  text-decoration: none;
  padding: 10px 15px;
  display: block;
  border-bottom: solid 1px rgba(0,0,0,0.2);
  transition: 0.3s;
}

.menu-list > ul > li a:hover {
  background-color: rgba(0,0,0,0.2);
  animation: linkAnimation 0.2s ease-out;
}
img.background{
  min-height: 100%;
  min-width: 640px;
  width: 100%;
  height: auto;
  position: fixed;
  opacity: 0.1;
  top: 0;
  left: 0;
  }
  img.background1 {
  min-height: 100%;
  min-width: 640px;
  width: 100%;
  height: auto;
  position: fixed;
  opacity: 0.1;
  top: 0;
  left: 0;
  }
.menu-background {
  width: 700px;
  height: 700px;
  position: fixed;
  top: 0px;
  left: 0px;
  z-index: 1;
  background-color: white;
  transform: translate(-100%, -100%);
  transition: all 0.3s ease-out;
  border-radius: 100%;
}

.navigation-block:hover .bar.upper-bar,
.navigation-block:hover .bar.lower-bar {
  transform: translatey(0px);
}

.navigation-block:hover .bar.upper-bar {
  transform: rotate(45deg);
}

.navigation-block:hover .bar.lower-bar {
  transform: rotate(-45deg);
}

.navigation-block:hover .bar.middle-bar {
  transform: translatex(-1000px);
}

.navigation-block:hover .menu-list {
  display: block;
}

.navigation-block:hover .menu-background {
  animation: bubblePresent 0.3s ease-out;
  transform: translate(-50%, -30%);
}

@keyframes linkAnimation {
  0% {
    /*transform: translateX(50px);*/
    transform: scale(1.1);
  }
  80% {
    /*transform: translateX(-10px);*/
    transform: scale(0.9);
  }
  100% {
    /*transform: translateX(0px);*/
    transform: scale(1);
  }
}

@keyframes bubblePresent {
  0% {
    transform: translate(-100%, -100%);
  }
  80% {
    transform: translate(-45%, -25%);
  }
  100% {
    transform: translate(-50%, -30%);
  }
}