.btn:after {
    background-image: url('data:image/svg+xml;utf8,<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"\a  viewBox="0 0 180 50" preserveAspectRatio="none"><g><polygon fill-rule="evenodd" clip-rule="evenodd" fill="%23EE3131" points="0,0 0,50 166,50 180,37 180,0"/></g></svg>');
}
.btn.btn-bordered:after {
    background-image: url('data:image/svg+xml;utf8,<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"\a  viewBox="0 0 187.1 52" enable-background="new 0 0 187.1 52" preserveAspectRatio="none"><g> <polygon fill="none" stroke="#FFFFFF" stroke-miterlimit="10" points="1.7,1 1.7,51 167.7,51 181.7,38 181.7,1"/></g></svg>');
}
@media screen and (-ms-high-contrast: active), (-ms-high-contrast: none) {
    .btn:after {
        background-color: #ee3131 !important;
    }
    .btn.btn-bordered:after {
        background-color: #ee3131 !important;
    }
}