* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    /* outline: 2px solid red; */
}

@keyframes fade-in {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

html {
    font-size: 1.25rem;
    scroll-behavior: smooth;
}

body {
    background-color: white;
    padding-inline: 3%;
    padding-block: 0.5%;
    padding-bottom: 2%;
}

header {
    font-family: 'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;
    background-color: rgb(239, 239, 239);
    color: #333;
    padding-inline: 3%;
    padding-block: 0.5%;
    padding-bottom: 1.5rem;
    margin-top: 20px;
    border-radius: 15px;
}

.main_title {
    text-align: center;
    font-size: 3rem;
}

.main_description {
    text-align: center;
    font-family: 'Courier New', Courier, monospace;
    font-size: 1.5rem;
}

main {
    background-color: rgb(239, 239, 239);
    color: #333;
    padding-inline: 3%;
    padding-block: 1%;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;

    animation-name: fade-in;
    animation-duration: 1.5s;
    border-radius: 15px;
}

a,
a:visited {
    font-family: 'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;
    color: rgb(140, 140, 140);
}

a:hover,
a:active {
    font-family: 'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;
    color: rgb(80, 80, 80);
}

.indent {
    margin-inline: 2em;
}

.bold {
    font-weight: bold;
}

.center {
    display: block;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

video {
    max-height: 75vh;
    max-width: 90%;
    margin: 1rem, 0rem;
    border-radius: 10px;
}

img {
    margin: 1rem, 0rem;
    border-radius: 10px;
    max-height: 50%;
}

p {
    margin: 1rem;
}

.date{
    font-weight: normal;
    font-style: italic;
    font-family: 'Courier New', Courier, monospace;
}

.pfp{
    border-radius: 50%;
    border: 0.5rem solid #333;
    background-color: #333;
}

/* .background_title{
    background-image: url(images/Neural_Network.jpg);
    background-size: cover;
    padding: 3rem;
}

.background_title, .h3{
    font-size: 2rem;
    color: white;
    background-color: black;
} */