Hello World!
// mark examples
console.log("Hello World!");
console.log("Hello World!");
console.log("Hello World!");
console.log("Hello World!");
console.log("Hello World!");
console.log("Hello World!");
console.log("Hello World!");
console.log("Hello World!");
console.log("Hello World!");
console.log("Hello World!");
console.log("Hello World!");
console.log("Hello World!");
console.log("Hello World!");
// mark codes
console.log("<mark>Hello World!</mark>");
console.log("<mark class='block'>Hello World!</mark>");
console.log("<mark class='gray'>Hello World!</mark>");
console.log("<mark class='red'>Hello World!</mark>");
console.log("<mark class='orange'>Hello World!</mark>");
console.log("<mark class='blue'>Hello World!</mark>");
console.log("<mark class='green block'>Hello World!</mark>");
console.log("<mark class='gold'>Hello World!</mark>");
console.log("<mark class='purple'>Hello World!</mark>");
console.log("<mark data-before='Message before'>Hello World!</mark>");
console.log("<mark class='block red' data-after='Message after'>Hello World!</mark>");
console.log("<mark class='green' data-before='$'>Hello World!</mark>");
console.log("<mark data-after='$'>Hello World!</mark>");