Fix: bootstrap - login

src/web/module/header.html

@@ -1,4 +1,4 @@
-<nav class="navbar navbar-expand-lg navbar-dark bg-dark">
+<nav class="navbar navbar-expand-lg navbar-dark bg-dark py-3">
 	<div class="container">
 
 		<a class="navbar-brand" href="javascript:void(0);" onClick="goHome()" href="">마우스 타자 연습</a>
@@ -9,11 +9,11 @@
 			<ul class="navbar-nav flex-row ml-md-auto d-none d-md-flex">
 
 				<li class="nav-item mr-2">
-					<a class="btn btn-warning px-4" href="./../client/login.html">등록 학생<br/>로그인</a>
+					<a class="btn btn-warning btn-lg px-3" href="./../client/login.html">등록 학생 로그인</a>
 				</li>
 
 				<li class="nav-item">
-					<a class="btn btn-primary" href="./../main/login.html">마에스트로<br/>로그인</a>
+					<a class="btn btn-primary btn-lg" href="./../main/login.html">마에스트로 로그인</a>
 				</li>
 
 			</ul>