* {
  font-family: Verdana, Geneva, Tahoma, sans-serif;
  line-height: 150%;
}
body {
  margin: 0;
  background-color: #ece5c7;
  padding-bottom: 100px;
}
header {
  color: white;
  margin: 0;
  padding: 10px;
  background-color: #354259;
  text-align: center;
}
h1 {
  margin: 0;
  padding: 10px;
}

.profile {
  display: flex;
  align-items: center;
  height: 50vh;
  background-color: #cdc2ae;
}
.profile img {
  float: left;
  margin-right: 20px;
  border: 1px solid;
  border-radius: 50%;
}

.profile p {
  padding: 10px;
  text-align: justify;
}

nav {
  height: 50px;
  width: auto;
  background-color: #ece5c7;
  clear: both;
  display: flex;
  justify-content: space-evenly;
  align-items: center;
}

nav a {
  text-decoration: none;
  color: black;
}

nav a:hover {
  text-decoration: underline;
}

footer {
  font-size: 3rem;
  text-align: center;
  background-color: #354259;
  color: white;
  position: fixed;
  width: 100%;
  bottom: 0;
}

.flex {
  display: flex;
}

.topics-header {
  position: static;
  color: white;
  margin: 0;
  padding: 10px;
  background-color: #354259;
}

table,
th,
td {
  border: 1px solid;
}

.topic-name {
  font-size: 3rem;
  text-align: center;
  text-decoration: underline;
}

/* Posion box properties */
/* Posion box properties */
/* Posion box properties */
/* Posion box properties */
/* Posion box properties */

.outer-box {
  display: flex;
  justify-content: center;
  align-items: center;
  border: solid blue;
  height: 750px;
  width: 750px;
  margin: auto;
}
.middle-box {
  display: flex;
  justify-content: center;
  align-items: center;
  border: solid green;
  height: 550px;
  width: 550px;
  margin: auto;
}
.inner-box {
  display: flex;
  justify-content: center;
  align-items: center;
  border: solid yellow;
  height: 350px;
  width: 350px;
  margin: auto;
}

.outer-box {
  position: relative;
}

.middle-box {
}

.inner-box {
}

.box {
  display: inline-block;
  height: 75px;
  width: 75px;
  border: solid;
}

.static {
  display: flex;
  justify-content: center;
  align-items: center;
  position: static;
}
.relative {
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: brown;
  border-color: black;
  color: white;
  position: relative;
}
.absolute {
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: green;
  position: absolute;
  top: 10px;
  left: 10px;
}
.fixed {
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: blueviolet;
  position: fixed;
  top: 100px;
  right: 10px;
}
.sticky {
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: grey;
  position: sticky;
  top: 0;
}