How to make sure that content never scrolls under a fixed material toolbar?

The below demo as a material toolbar that is styled like this: mat-toolbar { display:flex; position: fixed; justify-content: space-between; } Full screen https://angular-material-toolbar-fixed-with-styling.stackblitz.io/ Stackblitz https://stackblitz.com/edit/angular-material-toolbar-fixed-with-styling?file=src%2Fapp%2Fapp.component.ts How should we keep the lorem ipsum text from scrolling under the fixed toolbar? I tried wrapping the router-outlet in a div and putting a margin-top: 2rem on the div,…

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matchtemplate openCv2 python not match similar look

I have an Image that change it random the color, so some time the OpenCV recognize the object and sometimes it isn’t: My code: grey_img = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY) grey_temp = cv2.cvtColor(temp, cv2.COLOR_BGR2GRAY) w, h = grey_temp.shape[::-1] res = cv2.matchTemplate(grey_img, grey_temp, cv2.TM_CCOEFF_NORMED) print(res) threshold = 0.8; loc = np.where(res >= threshold) print(loc) for pt in zip(*loc[::-1]):…

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why are the circles with same speed appearing in the same x- coordinate

I have set up the circles so that each one of the circles have independent properties such as x, y and speed by doing this class Enemy: def __init__(self): self.x = 1300 self.y = random.randint(10, 200) self.radius = random.randint(15, 30) self.color = (random.randint(1, 255), random.randint(1, 255), random.randint(1, 255)) self.speed = random.randint(1, 4) In the below…

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