style.css

*{
    scroll-behavior: smooth;
    /* background: #1f2952; */
}

body{
    margin: 0;
    padding: 0;
    height: 95vh;
    background-color: #1f2952;
}

#body{
    background-color: #1f2952;
}

#open_text{
    border: #040b25 2px solid;
    border-radius: 20px;
    background-color: rgba(240, 248, 255, 0.123);
    margin: 3%;
    margin-right: 7%;
}

.img-fluid{
    border: #040b25 solid 2px;
}

#particles-js{
    height: 100%;
    background: #1f2952;
}

#opening_line{
    /* background: #fff; */
    opacity: 0.9;
    /* padding: 2em; */
    /* border: #1f2952 2px solid; */
    position: absolute;
    top: 5rem;
    left: 1rem;
}

#whyUs h2{
    font-size: 2.5em;
    text-align: center;
    font-family: 'Open Sans', sans-serif;
    /* margin-left: 10px; */
    background-color: #1900ff;
    display: block;
    color: white;
    border-radius: 15px;
    filter: saturate(0);
    margin: 15px;
}

#features{
    /* padding: 7% 7%; */
    /* background-color: #fff; */
    position: relative;
    z-index: 1;
    border-radius: 15px;
    margin: 15px;
}

#About{
    /* border: 2px solid #1900ff; */
    margin: 15px;
    border-radius: 15px;
    text-align: center;
    /* background-color: rgb(162, 168, 170); */
    font-weight: bold;
    font-size: large;
    padding: 0.5rem;
    display: inline-block;
    color: aliceblue;
}

#About h2{
    font-size: 2.5em;
    text-align: center;
    font-family: 'Open Sans', sans-serif;
    /* margin-left: 10px; */
    background-color: #1900ff;
    display: block;
    color: white;
    border-radius: 15px;
    filter: saturate(0);
}

#Categories{
    /* border: 2px solid #1900ff; */
    margin: 15px;
    border-radius: 15px;
    text-align: center;
    /* background-color: rgb(162, 168, 170); */
    font-weight: bold;
    font-size: large;
    padding: 0.5rem;
    display: inline-block; 
    color: aliceblue;  
}

#Categories h2{
    font-size: 2.5rem;
    text-align: center;
    font-family: 'Open Sans', sans-serif;
    /* margin-left: 10px; */
    background-color: #1900ff;
    display: block;
    color: white;
    border-radius: 15px;
    filter: saturate(0);
}

/* Style the tab buttons */
.tablink {
    background-color: #1f2952;
    color: white;
    float: left;
    border: none;
    outline: none;
    cursor: pointer;
    /* padding: 14px 16px; */
    font-size: 1.25rem;
    width: 50%;
    border-radius: 15px;
    /* margin: 0.05rem; */
  }
  
  /* Change background color of buttons on hover */
  .tablink:hover {
    background-color: #777;
  }
  
  /* Set default styles for tab content */
  .tabcontent {
    color: white;
    display: none;
    /* padding: 50px; */
    margin-top: 3rem;
    text-align: center;
  }
  
  /* Style each tab content individually */
  /* #London {background-color:rgb(70, 60, 207);}
  #Paris {background-color:rgb(230, 28, 105);} */

#Contact{
    /* border: 2px solid #1900ff; */
    margin: 15px;
    border-radius: 15px;
    text-align: center;
    /* background-color: rgb(162, 168, 170); */
    font-weight: bold;
    font-size: large;
    padding: 0.5rem;
    display: inline-block;
    color: aliceblue;
}

#Contact h2{
    font-size: 2.5em;
    text-align: center;
    font-family: 'Open Sans', sans-serif;
    /* margin-left: 10px; */
    background-color: #1900ff;
    display: block;
    color: white;
    border-radius: 15px;
    filter: saturate(0);
}