* {
    box-sizing: border-box
}
body {font-family: Arial, Helvetica;
}
.text-01 {color: red
}
.text-02 {color: rgb(0,255,0)
}
.text-03 {color: #0000FF;
font-weight: bold
}
.text-04 {size: 18px
}
.text-05 {size: 24px;
font-style: italic
}
.text-06 {color: white; 
    background-color: brown
}
.paragraph-01 {line-height: 32px;
text-align: center
}
.paragraph-02 {text-align: justify;
text-transform: uppercase
}
.box-01 {width: 400px;
height: 300px;
border: 1px solid purple;
padding: 30px
}
.box-02 {width: 500px;
height: 200px;
background-color: red;
margin: 100px
}
.box-03 {display: none
}
.box-04 {width: 100%;
height: 150px;
background-color: blue;
padding: 50px;
border: 10px solid yellow
}
.box-05 {visibility: hidden
}
.box-06 {height: 500px;
width: 200px;
background-color:rgba(0, 255, 0, .5);
}
.box-07 {height: 300px;
width: 400px;
position: relative;
background-color: lightblue
}
.box-08 {height: 50px;
width: 50px;
position: absolute;
top: 50px;
right: 10px;
background-color: pink
}
.button-01{width: 300px;
height: 100px;
}
.button-01:active {color: blue
}
.button-02{width: 200px;
height: 50px
}
.button-02:hover{background-color: brown
}
.box-09{height: 500px;
width: 200px;
background-color: rgb(59, 157, 160);
margin-top: 200px;
cursor: pointer
}