• 悬浮滚动


    直接上代码

    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>悬浮滚动</title>
        <style type="text/css">
            *{margin: 0;padding: 0;}
            div{text-align: center;}
        </style>
    </head>
    <body>
        <div style=" 100%;height: 200px;"></div>
        <div style=" 100%;height: 30px;background-color: #ff6444;z-index: 1;" id="nav"></div>
        <div>1</div>
        <div>2</div>
        <div>3</div>
        <div>4</div>
        <div>5</div>
        <div>6</div>
        <div>7</div>
        <div>8</div>
        <div>9</div>
        <div>10</div>
        <div>11</div>
        <div>12</div>
        <div>13</div>
        <div>14</div>
        <div>15</div>
        <div>16</div>
        <div>17</div>
        <div>18</div>
        <div>19</div>
        <div>20</div>
        <div>21</div>
        <div>22</div>
        <div>23</div>
        <div>24</div>
        <div>25</div>
        <div>26</div>
        <div>27</div>
        <div>28</div>
        <div>29</div>
        <div>30</div>
        <div>31</div>
        <div>32</div>
        <div>33</div>
        <div>34</div>
        <div>35</div>
        <div>36</div>
        <div>37</div>
        <div>38</div>
        <div>39</div>
        <div>40</div>
        <div>41</div>
        <div>42</div>
        <div>43</div>
        <div>44</div>
        <div>45</div>
        <div>46</div>
        <div>47</div>
        <div>48</div>
        <div>49</div>
        <div>50</div>
        <div>51</div>
        <div>52</div>
        <div>53</div>
        <div>54</div>
        <div>55</div>
        <div>56</div>
        <div>57</div>
        <div>58</div>
        <div>59</div>
        <div>60</div>
        <div>61</div>
        <div>62</div>
        <div>63</div>
        <div>64</div>
        <div>65</div>
        <div>66</div>
        <div>67</div>
        <div>68</div>
        <div>69</div>
        <div>70</div>
        <div>71</div>
        <div>72</div>
        <div>73</div>
        <div>74</div>
        <div>75</div>
        <div>76</div>
        <div>77</div>
        <div>78</div>
        <div>79</div>
        <div>80</div>
        <div>81</div>
        <div>82</div>
        <div>83</div>
        <div>84</div>
        <div>85</div>
        <div>86</div>
        <div>87</div>
        <div>88</div>
        <div>89</div>
        <div>90</div>
        <div>91</div>
        <div>92</div>
        <div>93</div>
        <div>94</div>
        <div>95</div>
        <div>96</div>
        <div>97</div>
        <div>98</div>
        <div>99</div>
        <div>100</div>
        <script type="text/javascript">
            window.onscroll = function(){
                var scrollTop = document.body.scrollTop || (document.documentElement && document.documentElement.scrollTop);
                if (scrollTop >= 200) {
                    document.getElementById('nav').style.position = 'fixed';
                    document.getElementById('nav').style.top = '0';
                }else{
                    document.getElementById('nav').style.position = 'relative';
                }
    
            }
        </script>
    </body>
    </html>
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  • 原文地址:https://www.cnblogs.com/chenmiaosong/p/8392367.html
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