css - HTML Select Option Need to Be Highlighted -

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मैं एक HTML ड्रॉप-डाउन बना रहा हूँ यहां मेरा कोड है

HTML 

  & lt; चयन करें & gt; & Lt; विकल्प वर्ग = "प्रथम" शैली = "प्रदर्शन: कोई नहीं;" & gt; एचएच & lt; / विकल्प & gt; & Lt; option class = "green" & gt; हैलो & lt; / option & gt; & LT; विकल्प & gt; पत्रिका & lt; / विकल्प & gt; & Lt; / चयन & gt;

मैंने विकल्प को डिस्प्ले: कोई भी नहीं दिया है ताकि यह ड्रॉप डाउन सूची में दिखाई न दे। थेट्स वर्किंग कूल !!!!, लेकिन मैं इस पहले <कोड> विकल्प के लिए रंग देने में सक्षम नहीं हूं इसलिए यह ड्रॉप डाउन का शीर्षक है, कृपया मुझे जवाब ढूंढने में मदद करें

विकल्प 1

आप select पर रंग सेट कर सकते हैं और

उदाहरण 

  
  चुनें {रंग: लाल; } विकल्प का चयन करें {रंग: काला; }  
 
 विकल्प 2 
 
 यदि पहला विकल्प (हैलो) विशुद्ध रूप से एक शीर्षक है और आप इसे नहीं चुना जाना चाहते हैं, तो आपको उसे  अक्षम । आप तब तदनुसार यह शैली कर सकते हैं। 
 
 
 
  उदाहरण  
 
  & lt; चयन करें & gt; & Lt; विकल्प वर्ग = "प्रथम" शैली = "प्रदर्शन: कोई नहीं;" & gt; एचएच & lt; / विकल्प & gt; & Lt; विकल्प अक्षम वर्ग = "हरा" & gt; हैलो & lt; / विकल्प & gt; & LT; विकल्प & gt; पत्रिका & lt; / विकल्प & gt; & Lt; / चयन & gt; विकल्प का चयन करें [अक्षम] {रंग: लाल; }


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