Update index.html

Signed-off-by: elseif <elseif@live.cn>

index.html

@@ -752,7 +752,7 @@
             const commandDiv = document.getElementById("command");
             const copyBtn = document.getElementById("copy-btn");
             versionBtns.innerHTML = `
-                <span style="color:#333" data-i18n="installCmdLabel"></span>
+                <span data-i18n="installCmdLabel"></span>
                 <label><input type="radio" name="tool" value="curl" checked>curl</label>
                 <label><input type="radio" name="tool" value="wget">wget</label>
                 <button data-version="${routeros7_stable}">RouterOS v7 Stable</button>