Question

/ *我不知道为什么我的代码不会显示我的背景。请帮忙

    header {
    z-index: 1;
    position: relative;
    background: #fff;
    padding-bottom: 15px; {
    header .banner {
    background: url("http://www.hhbeautysupply.com/modules/blockbanne/img/2ff10e96da748ecea3b41289ad8dfb39.jpg") repeat-x  #891C21;} 
}
}

Answer 1

您的元素import pygame # === constants === SIZE = (800, 600) WHITE = (255,255,255) # === functions === def display_slide(screen, filename): # --- read slide --- image = pygame.image.load(filename) # --- display --- #screen.fill(WHITE) screen.blit(image, (0,0)) pygame.display.flip() # --- get keypress --- running = True while running: for event in pygame.event.get(): if event.type == pygame.KEYDOWN: if event.key == pygame.K_c: running = False # === main === # --- init --- pygame.init() screen = pygame.display.set_mode(SIZE) # --- slides --- display_slide(screen, 'menu.png') display_slide(screen, 'disclaimer.png') # --- the end --- pygame.quit()需要.banner和height规则。

进一步：你的css格式不正确（除非你使用像sass这样的预处理器）它应该是这样的：

width

<强> DEMO

＆＃13;

header {
  z-index: 1;
  position: relative;
  background: #fff;
  padding-bottom: 15px;
}

header .banner {
  background: url("http://www.hhbeautysupply.com/modules/blockbanne/img/2ff10e96da748ecea3b41289ad8dfb39.jpg") repeat-x  #891C21;
  //height and width rules
}

＆＃13;

div {
    background: red;
    padding: 10px;
}

.foo {
    background: url("http://lorempixel.com/400/200/") repeat #891C21;
    height: 200px;
    width: 100%;
}

＆＃13;

我的Css背景不起作用

1 个答案: