diff --git a/100_projects/54-traffic-lights/inedx.html b/100_projects/54-traffic-lights/inedx.html
new file mode 100644
index 0000000..248cc15
--- /dev/null
+++ b/100_projects/54-traffic-lights/inedx.html
@@ -0,0 +1,19 @@
+
+
+
+
+
+
+ Document
+
+
+
+
+
+
+
+
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diff --git a/100_projects/54-traffic-lights/main.js b/100_projects/54-traffic-lights/main.js
new file mode 100644
index 0000000..ec521c6
--- /dev/null
+++ b/100_projects/54-traffic-lights/main.js
@@ -0,0 +1,18 @@
+const circles = document.querySelectorAll('.circle')
+let activeLight = 0;
+
+setInterval(() => {
+ changeLight();
+}, 1000);
+
+function changeLight() {
+ circles[activeLight].className = 'circle';
+ activeLight++;
+
+ if(activeLight > 2) {
+ activeLight = 0;
+ }
+ const currentLight = circles[activeLight]
+
+ currentLight.classList.add(currentLight.getAttribute('color'));
+}
\ No newline at end of file
diff --git a/100_projects/54-traffic-lights/style.css b/100_projects/54-traffic-lights/style.css
new file mode 100644
index 0000000..430d9d3
--- /dev/null
+++ b/100_projects/54-traffic-lights/style.css
@@ -0,0 +1,65 @@
+* {
+ box-sizing: border-box;
+}
+body {
+ background-color: #4682B4;
+ display: flex;
+ align-items: center;
+ justify-content: center;
+ min-height: 100vh;
+ margin: 0;
+}
+.container {
+ position: relative;
+ background-color: rgba(0, 0, 0, .5);
+ border-radius: 10px;
+ display: flex;
+ flex-direction: column;
+ align-items: center;
+ justify-content: space-around;
+ padding: 15px 0;
+ height: 200px;
+ width: 70px;
+ border: 3px solid #FFA500;
+}
+.container::before{
+ content: '';
+ position: absolute;
+ left:50%;
+ transform: translateX(-50%);
+ bottom: -250px;
+ width: 30px;
+ border-radius: 10px;
+ height: 250px;
+ background: #FFA500;
+ z-index: -1;
+}
+.circle {
+ background-color: rgba(0, 0, 0, 0.3);
+ border-radius: 100%;
+ position: relative;
+ height: 40px;
+ width: 40px;
+}
+.circle::after {
+ border-right: 4px solid rgba(255, 255, 255, 0.6);
+ border-radius: 100%;
+ content: ' ';
+ position: absolute;
+ top: 5px;
+ left: 0px;
+ width: 30px;
+ height: 30px;
+}
+.circle.red {
+ background-color: #c0392b;
+ box-shadow: 0 0 20px 5px #c0392b;
+}
+.circle.yellow {
+ background-color: #f1c40f;
+ box-shadow: 0 0 20px 5px #f1c40f;
+}
+.circle.green {
+ background-color: #2ecc71;
+ box-shadow: 0 0 20px 5px #2ecc71;
+}
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