*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'sora', sans-serif;
}

html,body{
    height: 100%;
}

body{
    min-height: 100vh;
}

header{
    display: flex;
    align-items: center;
    justify-content: center;
    height: 80px;
    background-color: #17a2b8;
}

header .container h1{
    color: white;
    font-weight: normal;
}

.box{
    text-align: left;
    padding: 30px;
}

.box .container textarea{
    width: 100%;
    height: 70vh;
    outline: none;
    padding: 10px;
    font-size: 1em;
    resize: none;
}

.box .container h3{
    font-weight: normal;
    font-size: 2em;
    color: #17a2b8;
}

.box .container .button{
    width: 100%;
    max-width: 500px;
}

.box .container .button button{
    width: 100%;
    padding: 10px;
    cursor: pointer;
    border: 1px solid #007bff;
    font-size: 15px;
    border-radius: 10px;
    color: #007bff;
    transition: .5s;
}

.box .container .button button:hover{
    background-color: #007bff;
    color: white;
    transition: .5s;
}