Untitled

body {
    background-color: crimson;
    display: flex;
    align-items: center;
    justify-content: center;
}

main {
    background-color: white;
    width: 70%;
    height: 80%;
    padding: 20px;
}

.lista-tarefas {
    display: flex;
    flex-direction: column;
}

.tarefa{
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.tarefa button {
    height: 20px;
}