can you add comments to this code:
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@200;300;400;500;600;700;800;900&display=swap');

*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Poppins", sans-serif;
}

section{
    position: relative;
    width: 100%;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    background: url(background.png) no-repeat;
    background-size: cover;
    background-position: center;
}

header{
    position: relative;
    top: 0;
    width: 100%;
    padding: 30px 100px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

label{
    display: none;
}

header .logout{
    position: relative;
    color: #626aff;
    font-size: 20px;
    padding: 2px 15px;
    text-decoration: none;
    text-transform: uppercase;
    font-weight: 800;
    letter-spacing: 1px;
    border-radius: 20px; 
    border: 2px solid rgba(255, 255, 255, .5);
}

header .logout:hover {
    background-color: #ff3131;
    color: #17193f;
    transition: 1s;
    transition-property: background;
    border-radius: 20px; 
}

header .navigation a{
    color: #fff;
    font-size: 18px;
    text-decoration: none;
    font-weight: 500;
    letter-spacing: 1px;
    padding: 2px 15px;
    border-radius: 20px;
    transition: 0.3s;
    transition-property: background;
    
}

header .navigation a:not(:last-child){
    margin-right: 30px;
}

header .navigation a:hover{
    background: #626aff;
}

.content{
    max-width: 700px;
    margin: 100px 100px;
}

.content .info h2{
    color: #626aff;
    text-align: left;
    font-size: 50px;
    text-transform: none;
    font-weight: 800;
    letter-spacing: 2px;
    line-height: 60px;
    margin-bottom: 30px;
}

.content .info p{
    color: #fff;
    text-align: justify;
    font-size: 18px;
    font-weight: 500;
    margin-bottom: 40px;
}

.content .info-btn {
    color: #fff;
    width: 100%;
    height: 100%;
    background: transparent;
    border: 2px solid rgba(255, 255, 255, .5);
    border-radius: 5px;
    font-size: 15px;
    padding: 10px 20px;
    text-decoration: none;
    text-transform: uppercase;
    text-align: center;
    font-weight: 700;
    letter-spacing: 2px;
    transition: 0.3s;
    transition-property: background;
}

.content .info-btn:hover{
    background: #626aff;
}

.media-icons{
    display: flex;
    justify-content: center;
    align-items: center;
    margin: auto;
}

.media-icons a{
    position: relative;
    color: #626aff;
    font-size: 30px;
    transition: 0.2s;
    transition-property: transform;
}

.media-icons a:not(:last-child){
    margin-right: 60px;
}

.media-icons a:hover{
    transform: scale(1.5);
}

#check{
    z-index: 3;
    display: none;
}

/* Responsive CSS */

@media (max-width: 960px){
  header .navigation{
    display: none;
  }

  label{
    color: #fff;
    display: block;
    font-size: 25px;
    cursor: pointer;
    transition: 0.3s;
    transition-property: color;
  }

  label:hover{
    color: #626aff;
  }

  label .close-btn{
    display: none;
  }

  #check:checked ~ header .navigation{
    z-index: 2;
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    background: #17193f;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
  }

  #check:checked ~  header .navigation a{
    font-weight: 700;
    margin-right: 0;
    margin-bottom: 50px;
    letter-spacing: 2px;
  }

  #check:checked ~ header label .close-btn{
    z-index: 2;
    position: fixed;
    display: block;
  }

  #check:checked ~ header label .menu-btn{
    display: none;
  }

  label .menu-btn{
    position: absolute;
  }

  header .logout{
    position: absolute;
    bottom: -6px;
  }

  .content .info h2{
    font-size: 45px;
    line-height: 50px;
  }

  .content .info h2 span{
    font-size: 40px;
    font-weight: 600;
  }

  .content .info p{
    font-size: 14px;
  }
}

@media (max-width: 560px){
  .content .info h2{
    font-size: 35px;
    line-height: 40px;
  }

  .content .info h2 span{
    font-size: 30px;
    font-weight: 600;
  }

  .content .info p{
    font-size: 14px;
  }
}