style.css

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

#containerWeightDisplay, #containerWeightEntry {
    background: url("App Background.png");
    padding: 15px;
    font-family: 'Poppins', sans-serif;
    color: white;
    height: 1000px;
}

h1 {
    left: 15px;
    top: 40px;
    color: darksalmon;
    font-family: 'Poppins';
    font-style: normal;
    font-weight: 700;
    font-size: 36px;
    line-height: 111%;
    text-align: center;
}

#currentWeight, #enterWeight1, #enterWeight2 {
    width: 100%;
    height: 200px;
    left: 15px;
    top: 150px;
    text-align: center;
    background-color: #648381;
    box-shadow: 0px 4px 4px rgba(0, 0, 0, 0.25);
    border-radius: 15px;
}

h2, #outputDate {
    font-size: 2em;
    margin-top: 15px;
    margin-bottom: 10px;
    font-weight: 500;
}

.weight {
    font-size: 3em;
}

p {
    font-size: 1.25em;
    margin-top: 0px;
    font-weight: 500;
}

#containerWeightDisplay p {
    font-size: 1.25em;
    margin-top: -20px;
    font-weight: 500;
}

#weightRecords {
    text-align: center;
}

#btnRecord, #btnSave {
    width: 100%;
    background-color: #FFBF46;
    color: white;
    margin-top: 15px;
    height: 50px;
    box-shadow: 0px 4px 4px rgba(0, 0, 0, 0.25);
    font-size: 1.5em;
    font-weight: 500;
}

#newWeight {
    background: #F2F4FF;
    border-radius: 15px;
    height: 34px;
    font-size: 1.5em;
    font-weight: 700;
    width: 100px;
    text-align: center;
}

#weightHistory {
    text-align: center;
    font-weight: 700;
}

.weightHistoryCell {
    background-color: white;
    color: black;
    margin-top: 15px;
    height: 50px;
    box-shadow: 0px 4px 4px rgba(0, 0, 0, 0.25);
    font-size: 1.5em;
    font-weight: 500;
    border-radius: 15px;
    line-height: 50px;
    padding-left: 15px;
    padding-right: 15px;
}

.left {
    float: left;
}

.right {
    float: right;
}