javascript - Add CSS class to change style of HTML element -

- 

@charset "utf-8";    html, body {  	margin: 0px;  	font-family: helvetica, sans-serif;  	min-height: 100%;  	height: 100%;  }    .center-container {  	display: flex;  	align-items: center;  	justify-content: center;  	height: 100%;  	/*height: 500px;*/  }    .main-container {  	/*height: 100%;*/  	  }      	  .darktitle {  	color: #000000;  	background: grey;  	font-size: 25px;  }    .titlebar {  	text-align: center;   	color: #ff0000;  	background: blue;  	font-size: 40px;  }        button {  	padding: 00px;  	font-weight: bold;  	  	font-size:1em;  	font  	  	color: #000000;  	height: 40px;  	width: 200px;  }
<!doctype html>  <html lang="de">  <head>  	<link href="styles/styles.css" rel="stylesheet"/>  	<meta charset="utf-8">    </head>  	<body>  		<div class="main-container">  			<h1 id="titlebar" class="titlebar"> titlebar</h1>  			<div class="center-container" >  					<button id="button1">button1</button>  					<button id="button2">button2</button>  					<button id="button3">button3</button>  			</div>  		</div>  		<script>  			var titlebar = document.queryselector('h1#titlebar');  			var button1 = document.queryselector('#button1');  			var button2 = document.queryselector('#button2');  			var button3 = document.queryselector('#button3');    			button1.addeventlistener('click', function() {  				titlebar.innerhtml = 'button1';    				var result = titlebar.classlist.contains('darktitle');  				console.log(result);  				titlebar.classlist.add('darktitle');  				var result = titlebar.classlist.contains('darktitle');  				console.log(result);    			});  		</script>  	</body>  </html>

hey earthlings,

i started learning html , css. i'm dealing style classes. created simple example. want reach is, titlebar changes font color, font-size , background color if button1 clicked.

initially titlebar has appended titlebar-class, after button1 clicked darktitle-class should added , overwrite attributes. in configuration doesn't happen. if change order of .darktitle , .titlebar class in css file works. wonder why.

the css styles should on same priority level, expect laterly assigned overwrite attributes.

tnx

you can use !important override styles this

.darktitle {     color: #000000!important;     background: grey!important;     font-size: 25px!important; }

Comments

Post a Comment

Popular posts from this blog

ios - RestKit 0.20 — CoreData: error: Failed to call designated initializer on NSManagedObject class (again) -

-
this error has shown on many times, seems. prominent answer issue seems restkit 0.20 — coredata: error: failed call designated initializer on nsmanagedobject class however, solution posted doesn't work me. let's start beginning: i want upload file server. want parse response make sure uploaded. if not, try again later. model has boolean variable called nsnumber *senttoserver purpose (in coredata, bool saved nsnumber ) . because don't know whether sending going successful, save entity coredata model first before sending via restkit. when post request successful, server returns json string this: {"id":14,"created":true} notice that, of course, id not set on coredata model yet, both id , created new informations model. here's model: @interface recording : nsmanagedobject @property (nonatomic, retain) nsstring * audiofilepath; @property (nonatomic, retain) nsdate * createdat; @property (nonatomic, retain) nsstring * deviceid; @...
Read more

java - Digest auth with Spring Security using javaconfig -

-
so i'm trying create digest authentication spring following documentation trying translate xml "requirements" in java requirements. let's have xml in docs: <bean id="digestfilter" class= "org.springframework.security.web.authentication.www.digestauthenticationfilter"> <property name="userdetailsservice" ref="jdbcdaoimpl"/> <property name="authenticationentrypoint" ref="digestentrypoint"/> <property name="usercache" ref="usercache"/> </bean> <bean id="digestentrypoint" class= "org.springframework.security.web.authentication.www.digestauthenticationentrypoint"> <property name="realmname" value="contacts realm via digest authentication"/> <property name="key" value="acegi"/> <property name="noncevalidityseconds" value="10"/> </b...
Read more

laravel - PDOException in Connector.php line 55: SQLSTATE[HY000] [1045] Access denied for user 'root'@'localhost' (using password: YES) -

-
my .env: app_env=local app_debug=true app_key=myappkey app_url=http://localhost db_connection=mysql db_host=localhost db_port=3306 db_database=gestiontaller db_username=root db_password='root' cache_driver=file session_driver=file queue_driver=sync redis_host=127.0.0.1 redis_password=null redis_port=6379 mail_driver=smtp mail_host=mailtrap.io mail_port=2525 mail_username=null mail_password=null mail_encryption=null i've tried password ", ' , without, restarting server every time. i've tried changing localhost 172.0.0.1. yes, password correct, running mysql -u root -p introducing password root in prompt can go mysql. users table: +------------------+-----------+ | user | host | +------------------+-----------+ | debian-sys-maint | localhost | | mysql.sys | localhost | | root | localhost | | root1 | localhost | +------------------+-----------+ i've added homestead.yaml this: database_port: 3306 ...
Read more