diff --git a/install-usercss/install-usercss.css b/install-usercss/install-usercss.css
index 45cd851d..55332c74 100644
--- a/install-usercss/install-usercss.css
+++ b/install-usercss/install-usercss.css
@@ -95,7 +95,7 @@ h1 small {
   margin: 0.5em 0;
 }
 
-button.install { /* raising specificity to override button:not(.fake) in global.css */
+.install {
   font-family: Arial, "DejaVu Sans", Verdana, Geneva, sans-serif;
   font-size: 14px;
   background-color: hsl(0, 0%, 33%);
@@ -114,21 +114,21 @@ button.install { /* raising specificity to override button:not(.fake) in global.
   transition: color .25s, background-color .25s;
 }
 
-button.install,
-button.install:before {
+.install,
+.install:before {
   background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAIAAAAeCAYAAAAGos/EAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH4gINFiccyZ2qfAAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAb0lEQVQY012OwQ3CUAzFnNeMAfsv1hk4VDTm0H6ByMmyLL2U+lRowKobwAVFEEWbwqKIIGDXBTQqBU3VbWYk0CTLIAxNEHI1s5oAYXAYm2AIfZ64Ab1ta4s/yHv908twHB5gqf0Tvyg1l9l3efC9Dw0XRC2vHIXXAAAAAElFTkSuQmCC);
   background-size: 100% 100%;
   background-repeat: repeat-x;
 }
 
-button.install:hover:not(:disabled) {
+.install:hover:not(:disabled) {
   background-color: hsl(0, 0%, 38%);
   color: #fff;
   text-shadow: none;
 }
 
-button.install:before,
-button.install:after {
+.install:before,
+.install:after {
   content: "";
   vertical-align: middle;
   box-sizing: border-box;
@@ -140,80 +140,80 @@ button.install:after {
   width: 30px;
 }
 
-button.install:before {
+.install:before {
   border-left: 1px solid rgba(0, 0, 0, .3);
   box-shadow: inset 0 -1px 0 0 hsl(0, 0%, 24%), inset 0 1px 0 0 hsl(0, 0%, 30%), inset -1px 0 0 0 hsl(0, 0%, 38%);
   padding: 5px 8px;
   transition: background-color .25s;
 }
 
-button.install:before,
-button.install:active:before,
-button.install:active:hover:before {
+.install:before,
+.install:active:before,
+.install:active:hover:before {
   background-color: hsl(176, 50%, 35%);
 }
 
-button.install:hover:before {
+.install:hover:before {
   background-color: hsl(176, 50%, 40%);
 }
 
-button.install:active,
-button.install:active:before {
+.install:active,
+.install:active:before {
   background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAIAAAAeCAYAAAAGos/EAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH4gINFioX6+ENuQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAc0lEQVQY003OwQ0CQQxD0edsRBX03xg9cFjBhMPuSOT0ZdmxuS/zesWTzExBI7xlZhrKeeYkmZkH1Icg3Rfs1D98v3Kgj+NSypJlpZWU0tbKKlpVCm0JSyuxPbbnqpiJ0JLr8+w9sbtGxqRFInvYbLiVGX46ECZMv8VvjwAAAABJRU5ErkJggg==);
   background-size: 100% 100%;
   background-repeat: repeat-x;
 }
 
-button.install:active,
-button.install:active:hover {
+.install:active,
+.install:active:hover {
   background-color: hsl(0, 0%, 33%);
 }
 
-button.install:after {
+.install:after {
   background-image: url(../images/icon/16.png);
   background-repeat: no-repeat;
   background-position: center center;
 }
 
-button.install:disabled {
+.install:disabled {
   opacity: .25;
   color: white;
   cursor: auto;
 }
 
-button.install.reinstall:after {
+.install.reinstall:after {
   filter: grayscale(100%);
 }
 
-button.install.reinstall:before,
-button.install.reinstall:active:before,
-button.install.reinstall:active:hover:before {
+.install.reinstall:before,
+.install.reinstall:active:before,
+.install.reinstall:active:hover:before {
   background-color: hsl(0, 0%, 20%);
 }
 
-button.install.reinstall:hover:before {
+.install.reinstall:hover:before {
   background-color: hsl(0, 0%, 25%);
 }
 
-button.install.reinstall:hover:before {
+.install.reinstall:hover:before {
   background-color: #444;
 }
 
-button.install.update:before,
-button.install.update:active:before,
-button.install.update:active:hover:before {
+.install.update:before,
+.install.update:active:before,
+.install.update:active:hover:before {
   background-color: hsl(140, 100%, 13%);
 }
 
-button.install.update:hover:before {
+.install.update:hover:before {
   background-color: hsl(140, 100%, 18%);
 }
 
-button.install.update:after {
+.install.update:after {
   filter: hue-rotate(-18deg) brightness(.7) contrast(2);
 }
 
-button.install.installed,
+.install.installed,
 h2.installed {
   display: none;
 }