.playground button,
.modal-body button:not(.link-like),
.modal button:not(.link-like),
button.regular,
button,
input[type=button],
input[type=submit],
input[type=button].regular,
.playground input[type="button"]:not(.default-button),
.playground input[type="submit"]:not(.default-button),
#searchbuttun,
button.delete,
#header .read_all,
#searchbutton,
body .mce-window .mce-btn.mce-primary > button[type="button"] {
    padding: 0 1em;
    background: linear-gradient(#f5f5f5, #e5e5e5);
    border: solid 1px #999;
    border-radius: 2px;
    /*font-size: 13px;*/
    font-weight: 700;
    color: #000;
    margin: 0;
    height: 28px;
    line-height: 100%;
    font-family: var(--main-font-family);
    vertical-align: middle;
}

:is(a[role=button], .playground button, .modal-body button:not(.link-like), .modal button:not(.link-like), button.regular, button, input[type=button], input[type=submit], input[type=button].regular, .playground input[type="button"], .playground input[type="submit"]):not(.default-button):not(:disabled):active {
    background: linear-gradient(#e5e5e5, #f5f5f5);
}