@import url(https://fonts.googleapis.com/css?family=Lato:700);
/* common */
.ribbon {
    width: 150px;
    height: 150px;
    overflow: hidden;
    position: absolute;
}

    .ribbon::before,
    .ribbon::after {
        position: absolute;
        z-index: -1;
        content: '';
        display: block;
        border: 5px solid #2980b9;
    }

    .ribbon span {
        position: absolute;
        display: block;
        width: 225px;
        padding: 15px 0;
        background-color: #3498db;
        box-shadow: 0 5px 10px rgba(0,0,0,.1);
        color: #fff;
        font: 700 18px/1 'Lato', sans-serif;
        text-shadow: 0 1px 1px rgba(0,0,0,.2);
        text-transform: uppercase;
        text-align: center;
    }

/* top left*/
.ribbon-top-left {
    top: -10px;
    left: -10px;
}

    .ribbon-top-left::before,
    .ribbon-top-left::after {
        border-top-color: transparent;
        border-left-color: transparent;
    }

    .ribbon-top-left::before {
        top: 0;
        right: 0;
    }

    .ribbon-top-left::after {
        bottom: 0;
        left: 0;
    }

    .ribbon-top-left span {
        right: -25px;
        top: 30px;
        transform: rotate(-45deg);
    }

/* top right*/
.ribbon-top-right {
    top: -10px;
    right: -10px;
}

    .ribbon-top-right::before,
    .ribbon-top-right::after {
        border-top-color: transparent;
        border-right-color: transparent;
    }

    .ribbon-top-right::before {
        top: 0;
        left: 0;
    }

    .ribbon-top-right::after {
        bottom: 0;
        right: 0;
    }

    .ribbon-top-right span {
        left: -25px;
        top: 30px;
        transform: rotate(45deg);
    }

/* bottom left*/
.ribbon-bottom-left {
    bottom: -10px;
    left: -10px;
}

    .ribbon-bottom-left::before,
    .ribbon-bottom-left::after {
        border-bottom-color: transparent;
        border-left-color: transparent;
    }

    .ribbon-bottom-left::before {
        bottom: 0;
        right: 0;
    }

    .ribbon-bottom-left::after {
        top: 0;
        left: 0;
    }

    .ribbon-bottom-left span {
        right: -25px;
        bottom: 30px;
        transform: rotate(225deg);
    }

/* bottom right*/
.ribbon-bottom-right {
    bottom: -10px;
    right: -10px;
}

    .ribbon-bottom-right::before,
    .ribbon-bottom-right::after {
        border-bottom-color: transparent;
        border-right-color: transparent;
    }

    .ribbon-bottom-right::before {
        bottom: 0;
        left: 0;
    }

    .ribbon-bottom-right::after {
        top: 0;
        right: 0;
    }

    .ribbon-bottom-right span {
        left: -25px;
        bottom: 30px;
        transform: rotate(-225deg);
    }