style.css

/* * {
    box-sizing: border-box;
} */

label {
    padding: 12px 12px 12px 0;
    display: inline-block;
}
input[type=text]{
    width: 100%;
    padding: 12px;
    border: 1px solid #ccc;
    border-radius: 4px;
    resize: vertical;
}

table {
    margin-left: 50px;
    margin-top: 10px;
}

header {
    text-align: center;
    background-color: rgba(72,215,171,255);
    padding: 20px;
    border: 1px solid;
    
}
input[type=submit] {
    padding: 12px;
    border: 1px solid;
}

.sub {
    border-radius: 4px;
}


.left {
    /* background-color: red; */
    float: left;
    width: 49%;
    height: 700px;
    border: 1px solid;
    border-top: none;
}
.right {
    /* background-color: blue; */
    float: right;
    width: 50%;
    height: 700px;
    border: 1px solid;
    border-top: none;
}

.runtime, .runtime th, .runtime td{
    width: 70%;
    border: 1px solid;
    border-collapse: collapse;
}
.runtime td {
    padding-left: 10px;
}
.runtime tr:nth-child(odd) {
    background-color: rgba(235,240,212,255);
}
p {
    color: white;
}

th {
    padding-left: 10px;
    padding-right: 10px;
    padding-top: 5px;
    padding-bottom: 5px;
    background-color: rgba(166,201,64,255);
    
}


#enroll {
    background-color:rgba(5,132,248,255);
}
#clear {
    background-color:rgba(214,42,68,255);
}