body {
  margin: 0;
}

nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: gray;
  z-index: 1000;
}

li {
  display: inline;
}

.main {
  position: relative;
  top: 50px;
}

.container {
  display: flex;
  flex-wrap: wrap;
  width: 95%;
  margin: 0 auto;
  justify-content: space-around;

}

.project {
  box-sizing: border-box;
  background-color: skyblue;
  min-height: 150px;
  border: 1px solid black;
  width: 48%;
  margin-bottom: 10px;
  /*text-align: center;*/
}

.project img {
  width: 90%;
  margin: 0 auto;
  display: block;
}

.project h1, 
.project p {
  text-align: center;
}

.project ul {
  display: flex;
  flex-wrap: wrap;
  width: 100%;
  /*margin: 0 auto;*/
  justify-content: flex-start;
}

.project li {
  box-sizing: border-box;
  width: 33%;
}

ul.technology-filter {
  display: flex;
  flex-wrap: wrap;
  width: 90%;
}