/* make website background gradient image dark tone */

body {
    background-image: linear-gradient(to bottom, #2c3e50 0%, #2c3e50 100%);
}


/* center all element in class image */

.image {
    display: block;
    margin-left: auto;
    margin-right: auto;
}


/* increase image in class api size */

img {
    width: 600px;
    height: auto;
}


/* make id button as green big button*/

#button {
    background-color: #4CAF50;
    border: none;
    color: white;
    padding: 15px 32px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    margin: 4px 2px;
    cursor: pointer;
    /* center button */
    display: block;
    margin-left: auto;
    margin-right: auto;
    width: 40%;
    /* rounded it */
    border-radius: 5px;
}

#button_red {
    background-color: #fa3838;
    border: none;
    color: white;
    padding: 15px 32px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    margin: 4px 2px;
    cursor: pointer;
    /* center button */
    display: block;
    margin-left: auto;
    margin-right: auto;
    width: 40%;
    /* rounded it */
    border-radius: 5px;
}


/* change flex direction when width lower than 500px*/

@media only screen and (max-width: 600px) {
    .image {
        display: flex;
        flex-direction: column;
    }
    img {
        width: 100%;
    }
    #button {
        width: 80vw;
    }
    #button_red {
        width: 80vw;
    }
}