*{
    padding: 0;
    margin: 0;
}

section .gauche{
    flex-direction: column;
}

section .gauche div{
    box-sizing: border-box;
}

.primerconcuatro{
    height: 400px;
    margin-left: 25px;
}

.primerolargo{
    height: 75px;
    width: 200px;
    margin: 10px 0 10px 0;
    background-color: #8e44ad;
}

.primerocorto{
    height: 75px;
    width: 100px;
    margin: 10px 0 10px 0;
    background-color: #8e44ad;
}

.segundoconunosolo{
    height: 100px;
}

.segundolineadivisora{
    height: 25px;
    width: 350px;
    background-color: #bdc3c7;
    margin: 25px;
}
.terceroconunalista{
    height: 300px;
}

ul{
    margin: 30px 0 0 30px;
}

li{
    padding: 20px;
    color: red;
}

.pequenalistauno{
    height: 10px;
    width: 300px;
    background-color: #bdc3c7 ;
}