html - Speech bubble background for arrow as well

Question

Hi I have done a speech bubble but I want to get the background image to come into the arrow as well. I did find some examples as well but editing them to fit my needs is confusing because I cant position the arrow to the place I want it to be in the end.

.bubble {
    position: relative;
    width: 227px;
    height: 310px;
    background-color:white !important;
    background: url(../images/thepartypeople/assets/main-bg.png) repeat 0 0;
}
.bubble:after {
    content: "";
    position: absolute;
    top: 128px;
    left: -15px;
    border-style: solid;
    border-width: 15px 15px 15px 0;
    border-color: transparent #000;
    display: block;
    width: 0;
    z-index: 1;

}

This is my code that I have for my speech bubble.

Any help would be appriciated

Thanks alot.