.float-container {
    width: 100%;
    height: 700px;
}

.rectangleT-float {
    width: 60%;
    height: 90px;
    margin-top: 5%;
    margin-left: 20%;
    background-color: rgb(67, 225, 9);
    line-height: 90px;
    text-align: center;
}

.rectangleL-float {
    width: 15%;
    height: 380px;
    margin-left: 20%;
    float: left;
    background-color: rgb(146, 75, 204);
    line-height: 380px;
    text-align: center;
}

.rectangleR-float {
    width: 45%;
    height: 380px;
    float: left;
    background-color: rgb(141, 215, 245);
    line-height: 380px;
    text-align: center;
}

.rectangleB-float {
    width: 60%;
    height: 90px;
    margin-left: 20%;
    background-color: rgb(241, 241, 165);
    line-height: 90px;
    text-align: center;
    clear: both;
}

.text-float {
    font-size: 30px;
    font-weight: bold;
    margin: 0;
}

.flex-container {
    width: 100%;
    height: 700px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.middle-container {
    height: 370px;
    width: 60%;
    display: flex; 
}

.rectangleT-flex {
    height: 90px;
    width: 60%;
    margin-top: 5%;
    background-color: rgb(67, 225, 9);
}

.rectangleL-flex {
    width: 25%;
    background-color: rgb(146, 75, 204);
}

.rectangleR-flex {
    width: 75%;
    background-color: rgb(141, 215, 245);
}

.rectangleB-flex {
    width: 60%;
    height: 90px;
    background-color: rgb(241, 241, 165);
}

.text-flex {
    height: 100%;
    font-size: 30px;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
}