styles.css

body {
    padding: 0px;
    margin: 0px;
    position: relative;
}

.topbar-title {
    padding: 18px;
    margin-top: 0px;
    font-size: 60px;
    text-align: left;
    padding-left: 10%;
}

.begin-year {
    margin-left: 3vh;
    font-size: 40px;
    margin-top: 65px;
    text-align: center;
}

.end-year {
    margin-left: 3vh;
    font-size: 40px;
    margin-bottom: 70px;
    text-align: center;
}

.saveButton {
    padding: 5px;
    margin-top: 20px;
    margin-left: 20px;
}

.timeline-line {
    height: 100vh;
    width: 10px;
    background-color: black;
    margin-left: 110vh;
    padding-top: 10px;
    margin-bottom: 60px;;
}

.overlay {
    filter: blur(8px);
    -webkit-filter: blur(8px);
    background-color: rgb(238, 238, 238);
    opacity: 0.8;
    width: 120%;
    height: 110%;
    margin: 0px;
    padding: 0px;
    position: absolute;
}

.overlay-text-container {
    padding: 10px;
}

.overlay-text {
    font-size: 20px;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
}

#begin {
    padding: 5px;
}

#end {
    padding: 5px;
}

#submit-times {
    padding: 5px;
}

.add-element {
    margin-left: 90px;
    margin-top: 100px;
    width: 20px;
    height: 20px;
    background-color: rgb(72, 72, 233);
    position: sticky;
}

.overlay-box {
    width: 50vh;
    margin: 0 auto;
    background-color: white;
    border-width: 4px;
    height: 50vh;
    position: absolute;
    margin-left: 87vh;
    margin-top: 25vh;
}

.topbar {
    width: 100%;
    background-color: lightseagreen;
    height: 20vh;
    padding-top: 0px;
    margin-top: 0px;
}