body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.white-text-color {
    color: white;
}

.red-text-color {
    color: red;
}

.greenish-text-color {
    color: rgb(22, 255, 22);
}

.blueish-text-color {
    color: #2200FF;
}

.brownish-background-color {
    background-color: brown;
}

.bold-text {
    font-weight: bold;
}

.italic-text {
    font-style: italic;    
}

.centered-text {
    text-align: center;
}

.justified-text {
    text-align: justify;
}

.uppercase-text {
    text-transform: uppercase
}

.line-height-32 {
    line-height: 32px;
}

.text-size-18 {
    font-size: 18px;
}

.text-size-24 {
    font-size: 24px;
}

.box-1 {
    width: 400px;
    height: 300px;
    border: 1px solid purple;
    padding: 30px;
}

.box-2 {
    background-color: red;
    width: 500px;
    height: 200px;
    margin: 100px;
}

.box-3 {
    width: calc(100% - 120px);
    height: 150px;
    background-color: #2200FF;
    padding: 50px;
    border: 10px solid yellow;
}

.box-4 {
    width: 200px;
    height: 500px;
    background-color: green;
    opacity: 0.5;
}

.box-5 {
    width: 400px;
    height: 300px;
    position: relative;
    background-color: lightblue;
}

.box-5-1 {
    width: 50px;
    height: 50px;
    position: absolute;
    top: 50px;
    right: 10px;
    background-color: pink;
}

.box-6 {
    width: 200px;
    height: 500px;
    background-color: #2200FF;
    margin-top: 200px;
    cursor: pointer;
}

.button-1 {
    width: 300px;
    height: 100px;
}

.button-1:active {
    color: #2200FF;
}

.button-2 {
    width: 200px;
    height: 50px;
}

.button-2:hover {
    background-color: brown;
}

.collapse {
    visibility: collapse;
}

.hidden {
    visibility: hidden;
}