a {
    cursor: pointer;
}


a {
  text-decoration: none;
  display: inline-block;
  padding: 8px 16px;
}


.previous {
  background-color: #1b1fe4;
  color: white;

}

.next {
  background-color: #1b1fe4;
  color: white;

}

.round {
  border-radius: 50%;
}



.navbar-fixed-top {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 999;
}

.header {
  position: fixed;
  top: 0;
  padding: 10px 16px;
  
}

.header-main {
    position: fixed;
    top: 0;
    right: 0;
    left: 0;
    bottom: 40;
    z-index: 999;
    width: 100%;
    height: 40px;
    background-color: gold;
    display:inline-flex;
    justify-content:center;
}

.header-main-logo {
width: fit-content;
height: 100%;
padding-left: 50px;
display: flex;
}

.header-main-logo img {
    height: 50px;
    align-self: center;
}

.header-main-nav {
    width: fit-content;
height: 100%;
width: fit-content;

}

.header-main-nav ul {
list-style: none;
margin-left: 0px;
}

.header-main-nav ul li {
    display: center;
    float: left;
}

.header-main-nav ul li a {
    padding: 0 5px 0 5px;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 16px;
    font-weight: bold;
    line-height: 15px;
    color: #000066;
    display: block;
    height: 100%;
}

.header-main-nav ul li a:hover {
    color: rgb(76, 76, 216);
    font-size: larger;
    display: block;

.header-main-sm {
height: 100%;
padding-right: 60px;
display: flex;
align-items: center;
column-gap: 10px;
}

.header-main-sm-fb {
    width: 20px;
    height: 20px;
    background-image: url(../img/CrestBlue66HH.jpg);
    background-repeat: no-repeat;
    background-size: cover;
}
.header-main-sm-in {
    width: 20px;
    height: 20px;
    background-image: url();
    background-repeat: no-repeat;
    background-size: cover;
}


<style>
.footer {
  position: bottom;
  left: 0;
  bottom: 0;
  width: 100%;
  background-color: #000066;
  color: #ffcc00;
  text-align: center;
}
</style>