* {
    border: 0px;
    padding: 0px;
    margin: 0px;
    box-sizing: border-box;
}

html {
    font-family: 'Quicksand', sans-serif;
    background-color: #D4D4D4;
}

.centered {
    display: flex;
    justify-content: center;
}

#retangular {
    width: 100%;
    float: left;
    background-color: black;
    color: #D4D4D4
}

#retangular-text {
    font-size: 15px;
}

#back-button {
    float: left;
    width: calc(100% - 20px);
    height: auto;
    background-color: white;
    border: 1px black solid;
    margin: 10px;
    padding: 10px;
    border-radius: 30px;
}

#back-button a {
    color: black;
    font-weight: 500;
    text-decoration: none;
}

#back-button:visited {
    text-decoration: none;
    color: black;
}

#back-button:hover {
    background-color: gray;
    text-decoration: underline;
}

#article {
    float: left;
    margin: 10px;
    background-color: white;
    width: calc(100% - 20px);
    height: auto;
    padding: 10px;
    border: 1px black solid;
}