html, body {
    margin: 0;
    padding: 0;
    font-family: "Helvetica";
}

.content_placement{
    text-align: center;
    align-items: center;
    display: flex;
    flex-direction: row;
}

.navbar {
    background-color: black;
    color: white;
    height: 70px;
    padding: 0;
}

.logoframe {
    height: 50px;
    margin: 0;
    padding: 10px 0 0 10px;
}

.navbarbutton_frame{
    margin-left: 15px;
    margin-top: 10px;
}

.marquee{
    background-color: orange;
    color: black;
}

.navbar_buttons{
    background-color: black;
    color: white;
    border-color: orange;
    border-style: solid;
    font-weight: bold;
    height: 30px;
    border-radius: 5px;
    padding: 10px 20px;
    text-decoration: none;
    transition: all 0s ease;
}

.custom-button:hover {
    background-color: #ffaa00;
    color: black;
}

.semesterframe{
    justify-content: space-evenly;
    place-content: center;
    text-align: center;
    display: flex;
    gap: 30px;
}

.quizframe{
    flex-direction: column;
    align-items: center;
    horiz-align: center;
    vertical-align: center;
}

.subject_lectures_frame{
    justify-content: center;
    align-items: center;
    text-align: center;
    display: inline-flex;
    height: 30vh;
    gap: 30px;
}

.welcometext_frame{
    justify-content: space-evenly;
    place-content: center;
    text-align: center;
    align-items: center;
}

.mainpage_semesterbuttons{
    background-color: black;
    color: white;
    font-weight: bold;
    font-size: 50px;
    border-color: orange;
    border-radius: 50%;
    height: 90px;
    width: 90px;
    text-decoration: none;
    transition: all 0s ease;
}

.subject{
    background-color: black;
    color: white;
    font-weight: bold;
    font-size: 15px;
    border-radius: 5%;
    height: 50%;
    width: 10%;
    padding: 10px 20px;
    text-decoration: none;
    transition: all 0s ease;
}

.questionbox{
    border-color: black;
    flex-direction: column;
    align-items: center;
    horiz-align: center;
    vertical-align: center;
    text-align: center;
}

.deadline_box{
    margin-bottom: 10px;
    font-weight: bold;
}