section.calculator-demo {
    background-color: #F3F6F8;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    margin: 0;
    font-family: -apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";
    font-size: 14px;
    line-height: 1.5;
}

section.calculator-inner {
    display: flex;
    flex-direction: row;
}

img {
    flex: 1;
    margin: 5%;
    margin-left: 20%;
}

#first_div {
    align-content: center;
    margin: 1%;
    flex: 1.25;
}

#first_p {
    margin: 3.5%;
    margin-left: 15%;
    font-family: Tahoma, sans-serif;
}

.flexelement {
    flex: 1;
    padding: 2%;
}



#form {
    margin-top: 7%;
    height: 100%;
    display: flex;
    align-content: center;
    justify-content: center;
}

#form input[type=number] {
    border: 1px solid white;
    border-radius: 0.3em;
    height: 12%;
    width: 100%;
    margin-bottom: 5px;
}


#form button {
    width: 100%;
    height: 12%;
    margin-bottom: 5px;
    border: 0;
}

#form button:disabled, #form button[disabled] {
    background-color: #0097e863;
}

header {
    height: 100px;
}

footer {
    margin-top: auto;
    height: 57px;
}

header, footer {
    background-color: #1A1A27;
}

#header_h1 {
    padding-top: 2.2%;
    margin-left: 40%;
    font-weight: bold;
    color: white;
}

input[type=number] {
    padding: 1%;
}

#principal, #interest_rate, #time {
    width: 25%;
}

#calc {
    width: 25%;
    padding: 1%;
    font-weight: bold;
    margin-top: 2%;
    color: white;
    background-color: #0095E8;
}

#simple_interest, #compound_interest {
    color: black;
    font-weight: bold;
}

input[type=radio] {
    display: none;
}

label {
    cursor: pointer;
}

input[type=radio] ~ img {
    animation: close 1.5;
    display: none;
    height: 0;
    max-height: 500px;
    overflow: hidden;
}

input[type=radio]:checked ~ img {
    animation: open 1.5s;
    display: block;
    height: auto;
    max-height: 500px;
}

@keyframes open {
    from {
        max-height: 0;
    }

    to {
        max-height: auto;
    }
}

@keyframes close {
    from {
        display: block;
        max-height: auto;
    }

    to {
        display: none;
        height: 0;
    }
}

.expander_label {
    border: 1px solid #0095E8;
    border-radius: 0.1em;
    padding: 1%;
    font-weight: 500;
    color: white;
    background-color: #0095E8;
    background-color: #0095E8;
}

#footer_p {
    font-weight: bold;
    font-size: 13px;
    text-align: center;
    color: white;
    vertical-align: central;
    padding: 1.2%;
}