diff --git a/website/src/styles/toolboxes/_rng-simulator.scss b/website/src/styles/toolboxes/_rng-simulator.scss
index cfc55e0..9396120 100644
--- a/website/src/styles/toolboxes/_rng-simulator.scss
+++ b/website/src/styles/toolboxes/_rng-simulator.scss
@@ -334,13 +334,23 @@
   border-left: 1px solid rgba(150, 165, 205, 0.12);
 }
 
+.rng-simulator-multiplier-field {
+  inline-size: calc(((100% - 8px) / 2) + 18px);
+  min-inline-size: 168px;
+  max-inline-size: 100%;
+}
+
 .rng-simulator-percent-input {
   display: grid;
-  grid-template-columns: minmax(0, 1fr) auto;
+  grid-template-columns: minmax(0, 1fr) 12px;
   gap: 6px;
   align-items: center;
 }
 
+.rng-simulator-percent-input > .nds-input {
+  width: 100%;
+}
+
 .rng-simulator-percent-input > span {
   color: var(--color-accent-gold);
   font-size: var(--font-size-xs);