* {
    margin: 0;
    padding: 0;
}

html, body {
    height: 100%;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Nirmala UI', Helvetica, Arial, sans-serif;
    font-size: 14px;
    background-color: #000;
}

header {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: #002828;
    padding: 5px 0px;
    text-align: center;
    border-bottom: 1px solid #01cc87;
}

main {
    display: flex;
    justify-content: center;
    align-items: center;
}

.content-box {
    margin-top: 125px;  
    background-color: #002828;
    padding: 20px 20px 20px 20px; 
    border: 1px solid #ddd;
    border-radius: 5px;
    width: 90%; 
    max-width: 1500px; 
    transition: top 0.3s ease;

}

.content-box-two { 
    color: #DBDBDB;
    background-color: #000;
    height: calc(100vh - 400px); 
    padding: 10px;
    border: 1px solid #777;
    overflow-y: auto;
    text-align: justify;
    min-height: 80px;
}

textarea {
    color: #555;
    width: calc(100% - 12px);
    height: 10%;
    padding: 5px;
    resize: none;
    background-color: #000;
    font-family: 'Nirmala UI', Helvetica, Arial, sans-serif;
    font-size: 14px;
}

.buttons {
    display: flex;
    justify-content: space-between;
    width: 100%;
    overflow-x: auto; 
}

.buttons input {
    background-color: #000;
    color: #DBDBDB;
    border: 1px solid #DBDBDB;
    margin: 0;
    padding: 5px;
    flex-basis: 0;
    flex-grow: 1;
}

.buttons input:hover {
    color: #01cc87;
    border: 2px solid #01cc87;
}

#input-submit {
    float: right;
    background-color: #000;
    color: #DBDBDB;
    margin-top: 10px;
    padding: 5px 10px;
    border-radius: 5px;
}

#input-submit:hover {
    color: #01cc87;
    border: 2px solid #01cc87;
}

footer {
    text-align: center;
    position: fixed; 
    width: 100%;   
    bottom: 0; 
    font-size: 14px;
    background-color: #002828;
    padding-top: 10px;
    padding-bottom: 10px;
    border-top: 1px solid #01cc87;
}

footer p {
    color: #000;
}

footer p a {
    color: #DBDBDB;
    text-decoration: none;
}

@media only screen and (max-width: 800px) {
    .content-box {
        margin-left: 2.5%;
        margin-right: 2.5%;
    }
    .content-box-two {
    	height: calc(100vh - 500px); 
    }
    #input-submit {
        margin-top: 2px;
    }
}