讲真视觉有山大那味了，直不愣登的

src/index/index.css

@@ -1,42 +1,38 @@
-.poster{
-    width: 100%;
-    height: 408px;
-    background-color: #80010A;
-    display: flex;
-    justify-content: center;
+.poster {
+  width: 100%;
+  height: 400px;
+  background-color: #80010a;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  position: relative;
 }
-.img-poster{
- padding-left: 11%;
+.img-poster {
+  height: 100%;
 }
-.btn-partIn{
-    border-radius: 5px;
-    border: 1px; 
-    height: 45px;
-    width: 9%;
-    min-width: 130px;
-    font-size: 20px;
-    font-weight: bold;
-    background-color: #FCFAFA;
-    color:#323232;
-    margin-top: 330px;
-    margin-left:11%;
-    
+.btn-partIn {
+  position: absolute;
+  right: 40px;
+  bottom: 20px;
 }
-.message{
-    width: 50%;
-    padding-left: 10%;
-    margin-top: 33px;
-    font-weight: bold;
+.message {
+  width: calc(50% - 60px);
+  margin-top: 30px;
 }
 
-.container{
-    display: flex;
-    width: 100%;
-    height: 800px;
+.container {
+  display: flex;
+  width: 1000px;
+  margin: 0 auto;
+  justify-content: space-between;
 }
-.cut-line{
-    display: flex;
-    height: 1px;
-    width: 80%;
-    background-color: #E6E6E6;
+.cut-line {
+  display: flex;
+  height: 1px;
+  width: 100%;
+  background-color: #e6e6e6;
+}
+.little-title {
+  padding: .75em .5em;
+  font-size: 18px;
 }