why? Strange things happened

[zqq-nuli]

code

      <button
                                className='h-8 w-24 text-sm bg-blue-600 hover:bg-blue-700 text-white rounded-md font-medium disabled:opacity-50 disabled:cursor-not-allowed inline-flex items-center justify-center gap-1.5 transition-colors'
                            >
                                <span>1</span>
                            </button>
                            <button
                                className='h-8 w-24 text-sm bg-blue-600 hover:bg-rose-700 text-white rounded-md font-medium inline-flex items-center justify-center gap-1.5 transition-colors'
                            >
                                <span>2</span>
                            </button>

package.json

  "tailwindcss": "^4.1.17",
    "postcss": "^8.5.6",
   "vite": "^7.0.4",
  "react": "^19.1.0",
    "react-dom": "^19.1.0"

app.css

@import "tailwindcss";

/* Tailwind v4 theme configuration */
@theme {
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, Liberation Mono, Courier New, monospace;
}

/* 动画定义 */
@keyframes shimmer {
  0% {
    background-position: -1000px 0;
  }
  100% {
    background-position: 1000px 0;
  }
}

.animate-shimmer {
  animation: shimmer 2s infinite;
  background: linear-gradient(
    to right,
    transparent 0%,
    rgba(255, 255, 255, 0.3) 50%,
    transparent 100%
  );
  background-size: 1000px 100%;
}

/* 自定义滚动条 */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(148, 163, 184, 0.3);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(148, 163, 184, 0.5);
}

/* Dark mode 滚动条 */
.dark ::-webkit-scrollbar-thumb {
  background: rgba(71, 85, 105, 0.5);
}

.dark ::-webkit-scrollbar-thumb:hover {
  background: rgba(71, 85, 105, 0.7);
}

/* 动画类 */
@keyframes fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slide-in-from-bottom {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes zoom-in {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.animate-in.fade-in {
  animation: fade-in 0.5s ease-out;
}

.animate-in.slide-in-from-bottom-4 {
  animation: slide-in-from-bottom 0.5s ease-out;
}

.animate-in.zoom-in-95 {
  animation: zoom-in 0.3s ease-out;
}


body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
    sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
/* 
/* 输入框范围滑块样式 */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #3b82f6;
  cursor: pointer;
  border: 2px solid white;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

input[type="range"]::-webkit-slider-thumb:hover {
  background: #2563eb;
}

input[type="range"]::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #3b82f6;
  cursor: pointer;
  border: 2px solid white;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

input[type="range"]::-moz-range-thumb:hover {
  background: #2563eb;
} */

[wongjn]

What is the strange thing that you are referring to please?

[zqq-nuli]

The two buttons have the same configuration, but I noticed that changing their color caused their heights to shift.