Blue Breeze

Checking if an input is empty with CSS Form Validation Part 1: Constraint Validation in HTML body { margin-top: 1.6em; } .form-group { position: relative; margin: 1em; } .form-group .form-control { } .form-group .form-control::placeholder { opacity: 0; } .form-group .form-control + label { color: #000; position: absolute; top: 50%; padding: 0.375rem 0.75rem; transform: translateY(-50%); transiti..

[code type=java] // Labelex1.java import java.awt.*; import java.awt.event.*; class LabelEx1 { Panel p1; //라벨이 붙을 패널 Label label1; public LabelEx1(){ p1 = new Panel(); label1 = new Label("이것은 라벨입니다."); p1.add(label1); } public Panel getPanel(){ return p1; } public static void main(String[] args) { LabelEx1 ex1 = new LabelEx1(); Frame f = new Frame("패널 보여주기"); f.add(ex1.getPanel()); f.setSize(200..

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