body {
  margin: 0px;
  padding: 0;
  box-sizing: border-box;
}

/*  Navigation */

nav {
  background-color: rgb(61, 208, 140);
  border-radius: 0.3rem;
  /* margin-top: 0px; */
  padding: 5px;
}
.nav-ul {
  list-style: none;
  text-align: center;
}
.nav-ul-li {
  display: inline;
  padding-top: 1rem;
  padding-left: 1rem;
}

.active {
  font-weight: bold;
}

#fun {
  /* margin-left: 2rem; */
}

.nav-li-item {
  text-decoration: none;
  color: rgb(234, 240, 244);
}

/* header  */

.main {
  text-align: center;
}

/* table  */

table {
  margin-inline: auto;
  width: 50%;
}

div {
  padding: 0.7rem;
}

#hypotenus {
  background-color: lightgrey;
  border-radius: 4px;
  width: 50%;
}

h1 {
  color: blueviolet;
}

h3 {
  color: rgb(48, 163, 240);
}

.res {
  margin: auto;
}

tr {
  padding: 2rem;
}

#calc {
  font-weight: bold;
  margin-right: 0.8rem;
}

#clear {
  font-weight: bold;
  margin-left: 0.8rem;
}