Nothing is as important as the first impression.
In the human relationships, the first forty seconds of treating a person for the first time are enough to develop an impression of her, bad of good. In Internet, the first twenty seconds of visiting a page for the first time are what determines the first impression that a person gets of it. In the modern psychology it is said that the first impression is the one that counts because it will be recorded in the subconscious mind and there it will remain forever. If it is a good impression then it will help to achieve better opportunities of success. For that reason the first impression is so important.