nav.css

body {
  margin: 0px;
  font-family: "Courier New", Courier, monospace;
  font-size: 20px;
  font-weight: 500;
}
#head-container {
  width: 100%;
  background-color: rgb(44 55 60);
  position: fixed;
  display: flex;
  justify-content: space-around;
  align-items: center;
}
h3 a{
  /* font-size: 1.7rem; */
    color:blanchedalmond;
    text-decoration: none;
}
.horizontal-list {
  list-style: none;
}
.horizontal-list li {
  display: inline-block;
  margin: 0 2.5vw;
}
.nav-menu a{
  color: white;
  text-decoration:none;
  font-size: 1rem;
  margin: 0 1rem;
  text-transform: capitalize;
}
.nav-menu a:hover {
  font-size:1.4rem;
  color:blanchedalmond;
  border-bottom: 2px solid blanchedalmond;
  transition: border-bottom 0.5s ease-in-out;
}
#check {
  display: none;
  margin: 0;
}
@media only screen and (max-width: 700px) {
  #head-container {
    display: block;
  }
  #header-name {
    display: flex;
    align-items: center;
    height: 100%;
    box-sizing: border-box;
    justify-content: center;
  }
  .nav-menu {
    position: absolute;
    background-color: rgba(144, 185, 207, 0.75);
    /* border: 2px solid black; */
    width: 100%;
    opacity: 0;
    transform: scale(1, 0);
    transition: transform 400ms ease-in-out;
    transform-origin: top;
  }
  .nav-menu ul {
    margin: 0;
    padding: 0%;
    margin-bottom: 2vh;
  }
  .nav-menu li {
    margin-left: 0rem;
  }
  .nav-menu a:hover {
    color:whitesmoke;
    font-size: 1rem;
  }
  .nav-menu a{
      color:black;
  }
  .horizontal-list li {
    display: block;
  }
  #toggle {
    position: absolute;
    top: 0%;
    left: 0%;
    margin-left: 1rem;
    display: flex;
    height: 100%;
    box-sizing: border-box;
    align-items: center;
  }
  #check:checked ~ nav {
    opacity: 1;
    transform: scale(1, 1);
    transition: transform 300ms ease-in-out 150ms;
  }
  #check:checked ~ nav a {
    opacity: 1;
  }
  #toggle span,
  #toggle span::after,
  #toggle span::before {
    height: 2px;
    width: 2rem;
    background-color: blanchedalmond;
    display: block;
    position: relative;
  }
  #toggle span::after,
  #toggle span::before {
    content: "";
  }
  #toggle span::after {
      position: absolute;
      top: 0.5rem;
  }
  #toggle span::before {
    position: absolute;
    top: -0.5rem;
  }
}