UPD: Brutally overengineered color picker

src/assets/main.css

@@ -1,40 +1,48 @@
 @import './base.css';
 
 #app {
-  
-  margin: 0 auto;
-  padding: 0rem 0rem!important;
-  font-weight: normal;
+
+    margin: 0 auto;
+    padding: 0rem 0rem !important;
+    font-weight: normal;
 }
 
 a,
 .green {
-  text-decoration: none;
-  color: hsla(160, 100%, 37%, 1);
-  transition: 0.4s;
-  padding: 3px;
+    text-decoration: none;
+    color: hsla(160, 100%, 37%, 1);
+    transition: 0.4s;
+    padding: 3px;
 }
 
-.text-xs{
-  font-size: 0.625rem;
-  letter-spacing: 0.05em;
+.text-xs {
+    font-size: 0.625rem;
+    letter-spacing: 0.05em;
 }
 
 @media (hover: hover) {
-  a:hover {
-    background-color: hsla(160, 100%, 37%, 0.2);
-  }
+    a:hover {
+        background-color: hsla(160, 100%, 37%, 0.2);
+    }
 }
 
 @media (min-width: 1024px) {
-  body {
-    display: flex;
-    place-items: center;
-  }
+    body {
+        display: flex;
+        place-items: center;
+    }
 
-  #app {
-    display: grid;
-    grid-template-columns: 1fr 1fr;
-    padding: 0 2rem;
-  }
+    #app {
+        display: grid;
+        grid-template-columns: 1fr 1fr;
+        padding: 0 2rem;
+    }
 }
+
+@layer base {
+    input[type="number"]::-webkit-inner-spin-button,
+    input[type="number"]::-webkit-outer-spin-button {
+        -webkit-appearance: none;
+        margin: 0;
+    }
+}