hook multifile to ui

app/templates/signupPromo/signupPromo.css

@@ -0,0 +1,85 @@
+.signupPromo {
+  display: flex;
+  flex-direction: column;
+  position: absolute;
+  right: 0;
+  height: 140px;
+  width: 150px;
+  background: #ffe900;
+  font-size: 13px;
+  font-weight: 500;
+  text-align: center;
+  justify-content: center;
+}
+
+.signupPromo::before {
+  content: '';
+  width: 0;
+  height: 0;
+  border-style: solid;
+  border-width: 0 35px 140px 0;
+  border-color: transparent #ffe900 transparent;
+  position: absolute;
+  right: 100%;
+}
+
+.signupPromo::after {
+  content: '';
+  width: 0;
+  height: 0;
+  border-style: solid;
+  border-width: 0 150px 35px 0;
+  border-color: transparent #ffe900 transparent;
+  position: absolute;
+  top: 100%;
+  left: 0%;
+}
+
+.signupPromo__title {
+  color: #0a84ff;
+  font-size: 22px;
+  font-style: italic;
+  font-weight: 600;
+  padding: 6px;
+}
+
+.signupPromo__info {
+  color: var(--lightTextColor);
+  padding: 6px;
+}
+
+.signupPromo__link {
+  z-index: 5;
+}
+
+.signupPromo__link:hover {
+  text-decoration: underline;
+}
+
+@media (max-device-width: 750px), (max-width: 750px) {
+  .signupPromo {
+    flex-direction: row;
+    align-items: center;
+    height: 40px;
+    width: 100%;
+  }
+
+  .signupPromo::before {
+    visibility: hidden;
+  }
+
+  .signupPromo::after {
+    border-width: 15px 50vw 0 50vw;
+    border-color: #ffe900 transparent transparent;
+  }
+}
+
+@media (max-device-width: 500px), (max-width: 500px) {
+  .signupPromo__link {
+    display: none;
+  }
+
+  .signupPromo {
+    overflow: hidden;
+  }
+}