main.css

@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@500&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@500&display=swap');
* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    color: white;
}

:root {
    --primary-color: #ffffff;
}

body {
    font-family: 'Roboto', sans-serif;
    background-color: #202225;
    overflow-y: scroll;
    overflow-x: hidden;
}

::-webkit-scrollbar {
    display: none;
}
.bio {
    display: flex;
    padding-top: 3vh;
    padding-bottom: 5vh;
    justify-content: center;
    background-color: #08BEF3;
}

.navbar {
    display: flex;
    padding-top: 0vh;
    padding-bottom: 5vh;
    justify-content: center;
    background-color: #08BEF3;
    /* box-shadow: 0px 30px 20px rgb(27, 27, 27); */
}

ul {
    display: flex;
    margin-top: 30px;
    list-style-type: none;
}

ul li a {
    color: white;
    font-size: 20px;
    text-decoration: none;
    padding: 5px 10px;
    margin: 0px 10px;
    position: relative;
    transition: all 0.3s;
}

a:hover {
    background-color: var(#ffffff);
    color: white;
}

a:before {
    content: '';
    position: absolute;
    bottom: 12px;
    left: 12px;
    width: 12px;
    height: 12px;
    border: 3px solid var(--primary-color);
    border-width: 0 0 3px 3px;
    transition: all 0.3s;
    opacity: 0;
}

a:hover:before {
    bottom: -8px;
    left: -8px;
    opacity: 1;
}

a:after {
    content: '';
    position: absolute;
    top: 12px;
    right: 12px;
    width: 12px;
    height: 12px;
    border: 3px solid var(--primary-color);
    border-width: 3px 3px 0 0;
    transition: all 0.3s;
    opacity: 0;
}

a:hover:after {
    top: -8px;
    right: -8px;
    opacity: 1;
}

.title {
    display: flex;
    color: white;
    padding-top: 0vh;
    font-family: 'Poppins', sans-serif;
    justify-content: center;
    text-align: center;
}

#header {
    display: flex;
    padding-top: 10vh;
    font-family: 'Poppins', sans-serif;
    justify-content: center;
    text-align: center;
    background-color: #08BEF3;
}

.box {
    padding: 40px;
    border-radius: 30px;
    /* box-shadow: 0px 0px 50px rgb(27, 142, 177); */
}

#header h1 {
    display: flex;
    font-size: 50px;
}

.corner {
    background-color: #08BEF3;
    width: 0;
    height: 0;
    z-index: 1;
    border-left: 150px solid transparent;
    border-bottom: 150px solid #1C1C18;
    align-content: center;
    top: 0;
    left: 0;
    position: absolute;
}

.corner_cont { 
    height: 16vh;
    transform-origin: left;
    position: absolute;
    z-index: 2;
    top: 0;
    left: 0;
}