What I've learned

1.Html : div tag와 span tag

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2.Html : Basic

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3.Html : Table

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4.JS : event.target;과 event.currentTarget;

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5.Html : form

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6.CSS : block, inline, inline-block

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7.CSS : flex

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8.CSS : fontello

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9.CSS : Peusdo-Element Selector

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10.JS : var, let, const?

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11.JS : Hoisting과 var, let, const

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12.JS : Array. method

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13.JS : Classes

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14.HTTP

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15.Dev Tools

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16.JS : Null vs Undefined

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17.JS : Object

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18.CSS : display: none;과 visibility: hidden;

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19.CSS : small TIP

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20.Semantic Web, Semantic Tag

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21.CSS : float

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22.CSS : position -relative, absolute, fixed

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23.JS : 삼항연산자

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24.Html : <button>과 <input type="button">

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25.Framework? Library?

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26.JS : allow function

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27.React : Intro

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28. JS : Callback 함수

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