body {
background-image: url(foncs.jpg) ;
background-size: cover;
}
img {
width: 640px;
height: 420px;
border: 5px solid black;
padding: 5px;
box-shadow: 0 4px 8px 0 rgba(0,0,0,0.2), 0 6px 20px 0 rgba(0,0,0,0.19);
border-radius: 15%;
opacity: 0.6;
transition: 0.5s;
}
.container {
padding: 10px;
display: flex;
flex-wrap: wrap;
justify-content: center;
}
img:hover {
opacity: 1;
}
.navbar li {
margin: 0 20px;
font-size: 20px;
font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
color: aliceblue;
border-radius: 1px;

}
.navbar a {
color: aliceblue;
border-radius: 5px;
box-shadow: 0 2px 4px rgba(0,0,0.3);
}
.navbar a:hover {
background-color: brown;
}
.navbar a.active {
background-color: blue;
}
.navbar {
display: flex;
}
h1 {
text-align: center;
font-size: 50px;
text-shadow: 2px 2px 5px rgba(0,0,0,0.39);
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
margin-top: 50px;
}
.headcs2 {
font-size: 35px;
font-family: 'Franklin Gothic Medium', 'Arial Narrow', Arial, sans-serif;
text-align: left;
}
.text {
background-color: rgba(231, 0, 0, 0.5);
opacity: 4;
}
.text-about {
font-size: 35px;
font-family: 'Franklin Gothic Medium', 'Arial Narrow', Arial, sans-serif;
text-align: left;
}
.container-about {
background-color: rgba(231, 0, 0, 0.5);
margin-top: 200px;
}
.hover-container {
  position: relative;
  display: inline-block;
  margin: 50px;
  cursor: pointer;
  font-size: 35px;
  font-family: 'Franklin Gothic Medium', 'Arial Narrow', Arial, sans-serif;
  background-color: rgba(231, 231, 231, 0.5);
}

.hover-box {
  position: absolute;
  top: 100%;
  left: 0;
  background: #333;
  color: white;
  padding: 5px 10px;
  opacity: 0;
  transition: 0.3s;
}

.hover-container:hover .hover-box {
  opacity: 1;
}