screen_rotation
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<!DOCTYPE html> <html> <head> <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script> </head> <body> <div id="app"> <h3>Vue js Change Button Class on Click</h3> <button :class="isActive ? 'btn active' : 'btn'" @click="isActive = !isActive"> Click me </button> </div> <script type="module"> const app = new Vue({ el: "#app", data() { return { isActive: false }; } }); </script> <style scoped> .btn { padding: 10px 20px; background-color: #f0f0f0; border: none; border-radius: 5px; font-size: 16px; cursor: pointer; transition: background-color 0.2s ease; } .btn.active { background-color: #00bfff; color: #fff; } </style> </body> </html>