Boxed border

A simple border on the inside of an image.

/* START add borders to images */
.hws_border img{
  outline: 1px solid #44A148;
  outline-offset: -15px;
}
/* END add borders to images */Code language: CSS (css)

With cross lines in the corners

Use the variable to set the color.

/* START add borders to images */
:root {
  --hws_border_color: #E1B75B;
}
.hws_border {
    height: 100%;
    width: 100%;
}
.hws_border:before,
.hws_border:after
 {
    left: 10px;
    top: 10px;
    bottom: 0;
    content: "";
    position: absolute;
    right: 0;
    z-index: 20;
}
.hws_border:before {
    height: calc(100% - 20px);
    margin: 0 10px;
    width: calc(100% - 40px);
    border-left: 1px solid var(--hws_border_color);
    border-right: 1px solid var(--hws_border_color);
}
.hws_border:after {
    height: calc(100% - 40px);
    margin: 10px 0;
    width: calc(100% - 20px);
    border-bottom: 1px solid var(--hws_border_color);
    border-top: 1px solid var(--hws_border_color);
}
/* END add borders to images */Code language: CSS (css)