Update src/streamlit_app.py

src/streamlit_app.py

@@ -16,6 +16,36 @@ st.markdown("""
             text-align: center;
             padding: 25px;
         }
+        /* ROOT & BODY */
+        body {
+              background-color: #f8f9fa;              /* light grey background */
+              color: #333333;                         /* dark grey text */
+          font-family: "Helvetica Neue", Arial, sans-serif;
+        }
+        
+        /* HEADINGS */
+        h1, h2, h3, h4, h5, h6 {
+          font-family: "Source Sans Pro", sans-serif;
+          color: #2c3e50;                         /* nice navy */
+          margin-top: 1.5em;
+          margin-bottom: 0.5em;
+        }
+        /* PARAGRAPHS */
+        p, .stMarkdown p {
+          font-size: 18px;                        /* comfortable reading size */
+          line-height: 1.6;                       /* good line spacing */
+          color: #4b4b4b;                         /* slightly lighter grey */
+          max-width: 800px;                       /* prevent overly long lines */
+          margin: 0.75em auto;                    /* vertical spacing, centered */
+          padding: 0 10px;                        /* small side padding */
+        }
+        
+        /* OPTIONAL: a helper class for even tighter control */
+        .writeup {
+          max-width: 700px;
+          margin: 1em auto;
+          padding: 0 15px;
+        }
         </style>
         """, unsafe_allow_html=True)
     
@@ -26,13 +56,13 @@ st.markdown(""" This application provides a suite of interactive visualizations
             
 # 2. Data info & load
 st.header("Dataset Information")
-st.markdown(
+st.markdown(<div class='p'><p>
     """
 - **Source:** LAPD crime incidents dataset  
 - **Rows:** incidents (one per row)  
 - **Columns:** e.g. `crm_cd_desc` (crime type), `arrest` (boolean), `date`, `location_description`, etc.  
 - **Purpose:** Interactive exploration of top crime categories and arrest rates.
-"""
+</p></div>"""
 )
 
 # 1. Resolve the path to the CSV next to this script