javascript - Adding logo to the navigation bar

Question

I need your help. I don't really know how to add logo of my company to this code.
If you know what I need to do to display the logo on the navigation bar, please help me.

This is the logo:

/*  import google fonts */

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700&family=Ubuntu:wght@400;500;700&display=swap');
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  text-decoration: none;
}

html {
  scroll-behavior: smooth;
}


/* custom scroll bar */

 ::-webkit-scrollbar {
  width: 10px;
}

 ::-webkit-scrollbar-track {
  background: #f1f1f1;
}

 ::-webkit-scrollbar-thumb {
  background: #888;
}

 ::-webkit-scrollbar-thumb:hover {
  background: #555;
}


/* all similar content styling codes */

section {
  padding: 100px 0;
}

.max-width {
  max-width: 1300px;
  padding: 0 80px;
  margin: auto;
}

.about,
.services,
.skills,
.teams,
.contact,
footer {
  font-family: 'Poppins', sans-serif;
}

.about .about-content,
.services .serv-content,
.skills .skills-content,
.contact .contact-content {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
}

section .title {
  position: relative;
  text-align: center;
  font-size: 40px;
  font-weight: 500;
  margin-bottom: 60px;
  padding-bottom: 20px;
  font-family: 'Ubuntu', sans-serif;
}

section .title::before {
  content: "";
  position: absolute;
  bottom: 0px;
  left: 50%;
  width: 180px;
  height: 3px;
  background: #111;
  transform: translateX(-50%);
}

section .title::after {
  position: absolute;
  bottom: -8px;
  left: 50%;
  font-size: 20px;
  color: crimson;
  padding: 0 5px;
  background: #fff;
  transform: translateX(-50%);
}


/* navbar styling */

.navbar {
  position: fixed;
  width: 100%;
  z-index: 999;
  padding: 30px 0;
  font-family: 'Ubuntu', sans-serif;
  transition: all 0.3s ease;
}

.navbar.sticky {
  padding: 15px 0;
  background: crimson;
}

.navbar .max-width {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar .logo a {
  color: #fff;
  font-size: 35px;
  font-weight: 600;
}

.navbar .logo a span {
  color: crimson;
  transition: all 0.3s ease;
}

.navbar.sticky .logo a span {
  color: #fff;
}

.navbar .menu li {
  list-style: none;
  display: inline-block;
}

.navbar .menu li a {
  display: block;
  color: #fff;
  font-size: 18px;
  font-weight: 500;
  margin-left: 25px;
  transition: color 0.3s ease;
}

.navbar .menu li a:hover {
  color: crimson;
}

.navbar.sticky .menu li a:hover {
  color: #fff;
}


/* menu btn styling */

.menu-btn {
  color: #fff;
  font-size: 23px;
  cursor: pointer;
  display: none;
}

.scroll-up-btn {
  position: fixed;
  height: 45px;
  width: 42px;
  background: crimson;
  right: 30px;
  bottom: 10px;
  text-align: center;
  line-height: 45px;
  color: #fff;
  z-index: 9999;
  font-size: 30px;
  border-radius: 6px;
  border-bottom-width: 2px;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s ease;
}

.scroll-up-btn.show {
  bottom: 30px;
  opacity: 1;
  pointer-events: auto;
}

.scroll-up-btn:hover {
  filter: brightness(90%);
}


/* home section styling */

.home {
  display: flex;
  background: url("images/banner.jpg") no-repeat center;
  height: 100vh;
  color: #fff;
  min-height: 500px;
  background-size: cover;
  background-attachment: fixed;
  font-family: 'Ubuntu', sans-serif;
}

.home .max-width {
  margin: auto 0 auto 30px;
}

.home .home-content .text-1 {
  font-size: 27px;
}

.home .home-content .text-2 {
  font-size: 75px;
  font-weight: 600;
  margin-left: -3px;
}

.home .home-content .text-3 {
  font-size: 40px;
  margin: 5px 0;
}

.home .home-content .text-3 span {
  color: crimson;
  font-weight: 500;
}

.home .home-content a {
  display: inline-block;
  background: crimson;
  color: #fff;
  font-size: 25px;
  padding: 12px 36px;
  margin-top: 20px;
  font-weight: 400;
  border-radius: 6px;
  border: 2px solid crimson;
  transition: all 0.3s ease;
}

.home .home-content a:hover {
  color: crimson;
  background: none;
}


/* about section styling */

.about .title::after {
  content: "who i am";
}

.about .about-content .left {
  width: 45%;
}

.about .about-content .left img {
  height: 400px;
  width: 400px;
  object-fit: cover;
  border-radius: 6px;
}

.about .about-content .right {
  width: 55%;
}

.about .about-content .right .text {
  font-size: 25px;
  font-weight: 600;
  margin-bottom: 10px;
}

.about .about-content .right .text span {
  color: crimson;
}

.about .about-content .right p {
  text-align: justify;
}

.about .about-content .right a {
  display: inline-block;
  background: crimson;
  color: #fff;
  font-size: 20px;
  font-weight: 500;
  padding: 10px 30px;
  margin-top: 20px;
  border-radius: 6px;
  border: 2px solid crimson;
  transition: all 0.3s ease;
}

.about .about-content .right a:hover {
  color: crimson;
  background: none;
}


/* services section styling */

.services,
.teams {
  color: #fff;
  background: #111;
}

.services .title::before,
.teams .title::before {
  background: #fff;
}

.services .title::after,
.teams .title::after {
  background: #111;
  content: "what i provide";
}

.services .serv-content .card {
  width: calc(33% - 20px);
  background: #222;
  text-align: center;
  border-radius: 6px;
  padding: 20px 25px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.services .serv-content .card:hover {
  background: crimson;
}

.services .serv-content .card .box {
  transition: all 0.3s ease;
}

.services .serv-content .card:hover .box {
  transform: scale(1.05);
}

.services .serv-content .card i {
  font-size: 50px;
  color: crimson;
  transition: color 0.3s ease;
}

.services .serv-content .card:hover i {
  color: #fff;
}

.services .serv-content .card .text {
  font-size: 25px;
  font-weight: 500;
  margin: 10px 0 7px 0;
}


/* skills section styling */

.skills .title::after {
  content: "what i know";
}

.skills .skills-content .column {
  width: calc(50% - 30px);
}

.skills .skills-content .left .text {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 10px;
}

.skills .skills-content .left p {
  text-align: justify;
}

.skills .skills-content .left a {
  display: inline-block;
  background: crimson;
  color: #fff;
  font-size: 18px;
  font-weight: 500;
  padding: 8px 16px;
  margin-top: 20px;
  border-radius: 6px;
  border: 2px solid crimson;
  transition: all 0.3s ease;
}

.skills .skills-content .left a:hover {
  color: crimson;
  background: none;
}

.skills .skills-content .right .bars {
  margin-bottom: 15px;
}

.skills .skills-content .right .info {
  display: flex;
  margin-bottom: 5px;
  align-items: center;
  justify-content: space-between;
}

.skills .skills-content .right span {
  font-weight: 500;
  font-size: 18px;
}

.skills .skills-content .right .line {
  height: 5px;
  width: 100%;
  background: lightgrey;
  position: relative;
}

.skills .skills-content .right .line::before {
  content: "";
  position: absolute;
  height: 100%;
  left: 0;
  top: 0;
  background: crimson;
}

.skills-content .right .html::before {
  width: 90%;
}

.skills-content .right .css::before {
  width: 60%;
}

.skills-content .right .js::before {
  width: 80%;
}

.skills-content .right .php::before {
  width: 50%;
}

.skills-content .right .mysql::before {
  width: 70%;
}


/* teams section styling */

.teams .title::after {
  content: "who with me";
}

.teams .carousel .card {
  background: #222;
  border-radius: 6px;
  padding: 25px 35px;
  text-align: center;
  overflow: hidden;
  transition: all 0.3s ease;
}

.teams .carousel .card:hover {
  background: crimson;
}

.teams .carousel .card .box {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.teams .carousel .card:hover .box {
  transform: scale(1.05);
}

.teams .carousel .card .text {
  font-size: 25px;
  font-weight: 500;
  margin: 10px 0 7px 0;
}

.teams .carousel .card img {
  height: 150px;
  width: 150px;
  object-fit: cover;
  border-radius: 50%;
  border: 5px solid crimson;
  transition: all 0.3s ease;
}

.teams .carousel .card:hover img {
  border-color: #fff;
}

.owl-dots {
  text-align: center;
  margin-top: 20px;
}

.owl-dot {
  height: 13px;
  width: 13px;
  margin: 0 5px;
  outline: none!important;
  border-radius: 50%;
  border: 2px solid crimson!important;
  transition: all 0.3s ease;
}

.owl-dot.active {
  width: 35px;
  border-radius: 14px;
}

.owl-dot.active,
.owl-dot:hover {
  background: crimson!important;
}


/* contact section styling */

.contact .title::after {
  content: "get in touch";
}

.contact .contact-content .column {
  width: calc(50% - 30px);
}

.contact .contact-content .text {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 10px;
}

.contact .contact-content .left p {
  text-align: justify;
}

.contact .contact-content .left .icons {
  margin: 10px 0;
}

.contact .contact-content .row {
  display: flex;
  height: 65px;
  align-items: center;
}

.contact .contact-content .row .info {
  margin-left: 30px;
}

.contact .contact-content .row i {
  font-size: 25px;
  color: crimson;
}

.contact .contact-content .info .head {
  font-weight: 500;
}

.contact .contact-content .info .sub-title {
  color: #333;
}

.contact .right form .fields {
  display: flex;
}

.contact .right form .field,
.contact .right form .fields .field {
  height: 45px;
  width: 100%;
  margin-bottom: 15px;
}

.contact .right form .textarea {
  height: 80px;
  width: 100%;
}

.contact .right form .name {
  margin-right: 10px;
}

.contact .right form .email {
  margin-left: 10px;
}

.contact .right form .field input,
.contact .right form .textarea textarea {
  height: 100%;
  width: 100%;
  border: 1px solid lightgrey;
  border-radius: 6px;
  outline: none;
  padding: 0 15px;
  font-size: 17px;
  font-family: 'Poppins', sans-serif;
  transition: all 0.3s ease;
}

.contact .right form .field input:focus,
.contact .right form .textarea textarea:focus {
  border-color: #b3b3b3;
}

.contact .right form .textarea textarea {
  padding-top: 10px;
  resize: none;
}

.contact .right form .button {
  height: 47px;
  width: 170px;
}

.contact .right form .button button {
  width: 100%;
  height: 100%;
  border: 2px solid crimson;
  background: crimson;
  color: #fff;
  outline: none;
  font-size: 20px;
  font-weight: 500;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.contact .right form .button button:hover {
  color: crimson;
  background: none;
}


/* footer section styling */

footer {
  background: #111;
  padding: 15px 23px;
  color: #fff;
  text-align: center;
}

footer span a {
  color: crimson;
  text-decoration: none;
}

footer span a:hover {
  text-decoration: underline;
}


/* responsive media query start */

@media (max-width: 1300px) {
  .home .max-width {
    margin-left: 0px;
  }
}

@media (max-width: 1104px) {
  .about .about-content .left img {
    height: 350px

Answer 1

Replace your current logo div with this one:

 <div class="logo"><a href="#"><img src="https://i.stack.imgur.com/r87vc.png"></a></div>

And add these lines to your css:

 .logo img{
    width: 200px; // size is up to you
    height: 200px; // size is up to you
    display: block;
 }

I would also recommend you to edit your .png in order to remove the big transparent border around the actual logo.