style.css

/* style.css */

body {
    background-color: #99CAF6;
    background-image: linear-gradient(to right, #E7F3FF, #99CAF6);
    font-family: "Courier New", Courier, monospace;
}

#leftCol {
    background-image: linear-gradient(#9AC3FF, #E7F3FF);
    position: fixed;
    width: 170px;
    overflow-y: scroll;
    top: 0;
    bottom: 0;
    background-color: #8DB9FF;
}

#input,
#settings {
    float: left;
}

table {
    font-family: arial, sans-serif;
    border-collapse: collapse;
    width: 50%;
    margin-left: auto;
    margin-right: auto;
}

td,
th {
    border: 1px solid #111011;
    text-align: left;
    padding: 8px;
}

tr:nth-child(even) {
    background-color: #dddddd;
}

.cloud {
    width: 150px;
    margin-top: 20px;
    margin-bottom: -90px;
    margin-left: 680px;
    margin-right: 680px;
}

.bs-example {
    margin-top: 10px;
    width: 350px;
    margin-left: auto;
    margin-right: auto;
}

div {
    text-align: center;
}

p {
    text-align: center;
    vertical-align: middle;
}

.input {
    text-align: center;
    margin: 100px auto;
}

input[type="submit"] {
    padding: 15px 30px;
    background: #e7e7e7;
    border: none;
    border-radius: 1px;
    font-family: "Nunito", sans-serif;
    font-weight: bold;
    font-size: 20px;
}

.input input[type="text"] {
    width: 600px;
    height: 55px;
    padding: 5px 10px;
    background: #e7e7e7;
    border: none;
    border-radius: 1px;
    font-family: "Nunito", sans-serif;
    font-weight: bold;
    font-size: 20px;
}

.card h1 {
    padding: 5px 0;
    text-align: center;
}

.card p {
    text-align: center;
    margin: 40px 0;
    font-size: 20px;
}